All Tools - Vai.la

Profit Margin & Markup Calculator Turn cost and price into profit margin, markup and profit in reais — or work backwards to the price you should charge. Product Pricing Calculator Find the sale price that covers your cost, taxes, fees and commission and still leaves the profit margin you want. Break-Even Point Calculator Find how many units you must sell each month to cover your fixed costs — and what revenue that adds up to. Contribution Margin Calculator See how much each sale leaves to pay the fixed costs, in reais and as a percentage of the price. Depreciation Calculator Calculate asset depreciation using straight-line, declining balance or sum-of-years digits — with a year-by-year table. Working Capital Calculator Calculate net working capital and liquidity ratios — current, quick and cash — from your balance sheet figures. Payback Period Calculator Calculate the simple and discounted payback period of an investment from its cash flows. NPV & IRR Calculator Calculate the Net Present Value (VPL) and Internal Rate of Return (TIR) from a series of cash flows. Inflation Correction Calculator Correct a value from one year to another using IPCA or IGP-M — the two main Brazilian price indices.

IBGE Municipality Code Lookup Search for the official IBGE code of Brazilian state capitals and major cities — the 7-digit identifier used in government forms and APIs. Straight-Line Distance Between Brazilian Cities Pick two Brazilian cities and see the straight-line (great-circle) distance between them in kilometres, computed with the Haversine formula. Coordinate Converter Convert geographic coordinates between decimal degrees, degrees-minutes-seconds and degrees-decimal-minutes. UTM Coordinate Converter Convert between UTM (easting, northing, zone) and decimal degrees — both ways. Distance Between Coordinates Calculate the straight-line distance between two geographic points using the Haversine formula. My Coordinates See your current geographic coordinates using your device's GPS — latitude, longitude and accuracy. Plus Code (Open Location Code) Convert between latitude/longitude and Plus Codes — Google's open addressing system for places without street names. Digital Compass Turn your phone into a compass — see the magnetic heading in degrees and the cardinal direction in real time. Cardinal Points Reference The 16 compass points with their abbreviations, degrees and full names — type a bearing to find the closest direction. Digital Bubble Level Use your phone's accelerometer as a digital level — see the angle and a bubble indicator.

Mean, Median & Mode Calculator Paste a list of numbers and get the mean, median, mode, range and totals in your browser. Standard Deviation Calculator Calculate sample and population standard deviation and variance, with every step shown. Sample Size Calculator Find how many answers a survey needs for a given confidence level and margin of error. Z-Score Calculator Calculate the z-score and corresponding percentile from a value, mean and standard deviation. Confidence Interval Calculator Compute the confidence interval for a population mean from the sample mean, standard deviation and sample size. Random Sample Generator Draw a random sample of numbers from a population — with or without replacement, sorted for easy use.

Percentage Calculator The three classic percentage problems solved instantly: X% of Y, X is what % of Y, and % change. Rule of Three Calculator Solve direct and inverse proportions: enter three known values and get the fourth, with the math spelled out. Number Base Converter Convert numbers between binary, octal, decimal and hexadecimal — all four fields update as you type. Weighted Average Calculator Average values that carry different weights — and find the grade you need on the next test. LCM & GCD Calculator Find the least common multiple and the greatest common divisor of any list of whole numbers, step by step. Simple Interest Calculator Calculate simple interest and the final amount — or leave one field empty to find the principal, rate or time. Discount Calculator Work out the price after a discount, the percentage between two prices, and what stacked discounts really add up to. Factorial, Permutation & Combination Calculator Work out n!, arrangements, combinations and anagram counts exactly, with every step shown in your browser. Fraction Calculator & Simplifier Reduce any fraction to lowest terms and add, subtract, multiply or divide two fractions — with the GCD and the LCM shown. Fraction ↔ Decimal Converter Turn a fraction into a decimal — repeating period included — and any decimal back into an exact fraction. Scientific Notation Converter Convert any number to scientific and engineering notation, and back again, with significant figures counted. Prime Number Checker & Factorizer Check whether a number is prime, break it into prime factors, list every prime up to N and find the next one. Pythagorean Theorem Calculator Find the hypotenuse or a missing leg of a right triangle, with every step of the calculation shown. Area & Perimeter Calculator Area and perimeter of squares, rectangles, triangles, circles, trapezoids and rhombuses, with the formula applied to your numbers. Volume Calculator Volume of cubes, boxes, spheres, cylinders, cones and pyramids — plus surface area where it is direct — in your browser. Angle Converter Convert degrees, radians, gradians and degrees-minutes-seconds, with the sine, cosine and tangent of the angle. Multiplication Table Times table for any number from 1 to 100, a clickable 1-10 grid and a practice mode with a session score. Molar Mass Calculator Type a chemical formula and get the molar mass in g/mol, with the contribution of each element — using IUPAC 2021 atomic weights. Compound Interest Calculator Calculate compound interest with monthly contributions — see how your money grows over time. Quadratic Equation Solver Solve ax² + bx + c = 0 — see the discriminant, the roots and whether they are real or complex. Matrix Calculator Compute the determinant, transpose or inverse of a matrix up to 10×10 — with step-by-step results. Function Plotter Type a mathematical function and see its graph plotted on an interactive canvas with axes and grid. Average Speed Calculator Calculate speed, distance or time from any two of the three — type two and the third is computed. Free Fall Calculator Calculate how long an object takes to fall from a given height, or how far it falls in a given time — with final velocity. Kinetic & Potential Energy Calculator Calculate kinetic energy from mass and velocity, potential energy from mass and height, or both at once. Dilution Calculator (C₁V₁ = C₂V₂) Solve the dilution equation for any unknown — concentration or volume — in one step. pH Calculator Enter pH, pOH, [H⁺] or [OH⁻] and see the other three instantly — at 25 °C.

Clothing Size Converter Type your body measurements and see the corresponding clothing size in BR, EU, US and UK — with the full chart on screen. Shoe Size Converter Measure your foot in centimetres and see the corresponding shoe size in BR, EU, UK, US and Mondopoint — with ISO 9407 references. Ring Size Converter Measure your finger circumference and see the corresponding ring size in BR (aro), ISO, US and UK — based on NBR 16058. Bra Size Converter Type your underbust and bust measurements and see the corresponding bra size in BR, EU, US and UK — with band and cup charts on screen.

Epoch Timestamp Converter Convert Unix timestamps to human-readable dates and back — local, UTC and ISO 8601, in your browser. Days Between Dates Calculator Count the days, weeks, months and business days between two dates — right in your browser. Age Calculator Find the exact age in years, months and days, with total days lived and the countdown to the next birthday. Add or Subtract Days from a Date Add or subtract days, weeks, months or years from any date, with correct end-of-month handling. What Day of the Week Was It? Find the day of the week of any date from 1583 to 9999, with day of the year, ISO week and leap-year facts. Week Number Calculator Find the ISO 8601 week number of any date — and the exact dates of any week number. Time Zone Converter Convert any date and time between two time zones, with the live difference — in your browser. Leap Year Checker Check whether any year is a leap year, with the rule explained and the next leap years listed. Brazilian Calendar with National Holidays See every month of any year with all Brazilian national holidays marked — fixed and moveable, derived from Easter. Business Days Calculator Count the business days between two dates, excluding weekends and Brazilian national holidays. Procedural Deadline Calculator (CPC) Count a CPC procedural deadline in business days or calendar days from the date of service, with Brazilian national holidays excluded. Golden Hour Calculator Find the golden hour and blue hour times for any latitude and date — for photography planning. Movable Dates Calculator Find Carnival, Easter, Corpus Christi, Mother's Day and other movable dates for any year. Lunar Calendar See the moon phase for any date and browse a full month of phases. Season Calculator Enter a date to see the season and the next equinox or solstice.

World Clock See the current time in multiple time zones at a glance.

Countdown Timer Count down to any date and time — days, hours, minutes and seconds, live in your browser. Hours Calculator Add and subtract durations in HH:MM or work out hours between two times, night shifts included. Online Stopwatch Start, pause and record laps with a precise stopwatch — right in your browser, nothing to install. Pomodoro Timer Work in focused 25-minute blocks with timed breaks — the classic Pomodoro technique, with browser notifications when each phase ends.

JSON Formatter & Validator Format, minify and validate JSON with precise error messages — right in your browser. Image to Base64 Converter Convert an image to a Base64 Data URI with ready-to-paste HTML and CSS snippets — no upload involved. Duplicate Line Remover Delete duplicate lines from any list while keeping the original order — in your browser. Invisible Character Detector Detect, reveal and remove invisible Unicode characters — zero-width spaces, NBSP, bidi marks and more. Tabs to Spaces Converter Convert indentation between tabs and spaces with configurable width — right in your browser. JWT Decoder Decode JWT header and payload, inspect claims and expiration — without the token leaving your browser. XML Formatter & Validator Format, minify and validate XML with clear error messages — right in your browser. Epoch Timestamp Converter Convert Unix timestamps to human-readable dates and back — local, UTC and ISO 8601, in your browser. Markdown Table Generator Build Markdown tables visually — editable grid, per-column alignment and CSV import, in your browser. CHMOD Calculator Convert Linux file permissions between checkboxes, octal (755) and symbolic (rwxr-xr-x) in your browser. HTTP Status Codes Reference Search every standard HTTP status code — 1xx to 5xx, color-coded, with plain-English explanations. ASCII Table The complete ASCII table — decimal, hex, octal, binary and HTML entities, with click-to-copy. IBAN Validator Validate an international bank account number, check its length by country and format it in blocks — in your browser. XML Sitemap Generator Turn a list of URLs into a valid sitemap.xml, generated and downloaded in your browser. Paper Size Reference (A4, letter, DPI pixels) Search any paper size and get its dimensions in mm, cm and inches plus pixels at 72, 150, 300 and 600 DPI. Markdown Preview & HTML Converter See your Markdown rendered side by side and copy the HTML — the preview runs sandboxed in your browser. YAML to JSON Converter Convert YAML to JSON and JSON to YAML, with the exact line and column of any syntax error. SQL Formatter Turn one-line, unreadable SQL into a properly indented query — 18 dialects, all in your browser. Regex Tester Test regular expressions live with match highlighting, capture groups and flags — right in your browser. CSV ↔ JSON Converter Convert CSV to JSON or JSON to CSV — choose the delimiter, paste the data, and copy the result. Text Diff Compare two texts side by side and see exactly what was added, removed or changed — line by line. XML to JSON Converter Convert XML to JSON or JSON to XML — bidirectional, with attributes and nested elements handled correctly. JSON to TypeScript Convert a JSON sample into a TypeScript interface definition. JSON Diff Viewer Compare two JSON documents and see the differences highlighted.

CPF Generator & Validator Generate valid CPF numbers for software testing and validate any CPF instantly. CNPJ Generator & Validator Generate valid CNPJ numbers for software testing and validate any CNPJ instantly. Test Credit Card Generator Generate Luhn-valid card numbers for payment testing — clearly fictitious, never usable for real purchases. RG Generator & Validator Generate well-formed RG numbers with the SSP-SP algorithm and validate any RG check digit in your browser. CNH Generator & Validator Generate valid Brazilian driver's license (CNH) numbers for software testing and validate any CNH instantly. PIS/PASEP Generator & Validator Generate valid PIS, PASEP and NIT numbers for software testing and validate any of them in your browser. Voter ID Generator & Validator Generate valid Brazilian voter registration numbers by state and validate any voter ID in your browser. RENAVAM Generator & Validator Generate valid RENAVAM numbers for software testing and validate any RENAVAM in your browser. CNJ Lawsuit Number Validator Validate and decode a Brazilian unified lawsuit number — court, segment, year and origin — in your browser. Brazilian Test Data Generator Generate fictitious people with name, CPF, e-mail, phone and address — ready to paste into a test database or a mock API. Fictitious Person Generator Generate a single fictitious person with name, CPF, RG, date of birth, phone, e-mail and address — for software testing. Fictitious Company Generator Generate a fictitious Brazilian company with trade name, CNPJ, state registration and address — for software testing. Fictitious Vehicle Generator Generate a fictitious Brazilian vehicle with make, model, Mercosul plate, RENAVAM and chassis — for software testing. Test Bank Account Generator Generate fictional bank accounts with valid check digits for the main Brazilian banks — for software testing only. State Registration Generator Generate valid IE numbers for software testing. Certificate Number Generator Generate fictitious birth/marriage/death certificate numbers for testing. License Plate Generator Generate vehicle plates in old and Mercosul formats for testing.

Base64 Encoder & Decoder Encode text to Base64 and decode it back — UTF-8 safe, entirely in your browser. URL Encoder & Decoder Percent-encode and decode URLs or query parameters without breaking special characters. Number Base Converter Convert numbers between binary, octal, decimal and hexadecimal — all four fields update as you type. Hash Generator Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text — right in your browser. HMAC Generator Compute HMAC-SHA-256 and HMAC-SHA-512 signatures with your secret key — right in your browser. JWT Decoder Decode JWT header and payload, inspect claims and expiration — without the token leaving your browser. HTML Entities Encoder & Decoder Encode special characters into HTML entities and decode them back — in your browser. Base64 to Image Decoder Decode a Base64 string and display or download it as an image file.

UUID v4 Generator Generate one or many random UUID v4 identifiers with cryptographic randomness. Lorem Ipsum Generator Generate classic Lorem Ipsum placeholder text by words, sentences or paragraphs — in your browser. API Token Generator Generate cryptographically secure random tokens in hex, Base64URL or alphanumeric format — in your browser. Username Generator Create pronounceable, memorable usernames with an optional base word, numbers and separators. Robots.txt Generator Build a valid robots.txt with presets, custom rules, AI-crawler blocking and your sitemap line. Barcode Generator Create EAN-13, EAN-8, UPC, ITF-14, CODE128 and CODE39 barcodes and download the PNG — all in your browser. Brazilian Test Data Generator Generate fictitious people with name, CPF, e-mail, phone and address — ready to paste into a test database or a mock API. .gitignore Generator Pick your stacks and generate a .gitignore file with the right rules — Node, Python, Java, Go, React, Laravel and 15 more. Cron Expression Explainer Paste a cron expression and see what it means in plain language, plus the next five scheduled runs. Cron Expression Builder Build cron expressions visually instead of memorising the syntax.

Strong Password Generator Create strong random passwords with full control over length and characters — generated locally, never transmitted. Caesar Cipher Encoder & Decoder (ROT13) Encrypt and decrypt messages with the Caesar cipher or ROT13 — right in your browser. Hash Generator Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text — right in your browser. HMAC Generator Compute HMAC-SHA-256 and HMAC-SHA-512 signatures with your secret key — right in your browser. API Token Generator Generate cryptographically secure random tokens in hex, Base64URL or alphanumeric format — in your browser. QR Code Reader Read any QR code with your camera or from an image file — decoded in your browser. Leaked Password Checker Check whether a password appears in known data breaches — the password itself never leaves your browser. Passphrase Generator (Diceware) Generate a strong, memorable passphrase by combining random Portuguese words — the Diceware method with a local word list. SSL Certificate Checker Check the SSL/TLS certificate of any domain — issuer, validity dates, days until expiry and subject alternative names. EXIF & Metadata Remover Strip all metadata from an image — EXIF, GPS location, camera info — by re-exporting through the browser canvas. Password Strength Checker Type a password and see its strength — based on length, character types and entropy. TOTP Generator Generate a TOTP secret, see the QR code, and verify tokens.

CHMOD Calculator Convert Linux file permissions between checkboxes, octal (755) and symbolic (rwxr-xr-x) in your browser. CIDR Subnet Calculator Get network, broadcast, usable host range, netmask and wildcard from any IPv4 address and CIDR prefix — in your browser. CSS Unit Converter (px ↔ em, rem, pt, %) Convert px, em, rem, pt and % with a configurable base font size — full equivalence table in your browser. PPI / DPI Calculator Find the pixel density, dot pitch and sharpness class of any screen from its resolution and diagonal — in your browser. Bitrate Calculator Convert between duration, file size and bitrate for audio and video — in your browser. Data Storage Converter (GB, GiB, MB, Mbps) Convert decimal and binary storage units plus bits and bytes — and finally see why a 1 TB drive shows up as 931 GB. Wi-Fi QR Code Generator Create a QR code that connects any phone to your Wi-Fi network in one scan — built in your browser. What Is My IP See your public IP address and approximate location — city, state, country — detected from the connection, with nothing to install. My HTTP Headers See every HTTP header your browser sends with each request — user agent, accepted languages, encoding, cookies and more. DNS Lookup Look up all DNS records for a domain — A, AAAA, MX, CNAME, TXT, NS and SOA — from the server. WHOIS Lookup Query the WHOIS registration data for any domain — registrar, creation date, expiry, nameservers and contact information. SSL Certificate Checker Check the SSL/TLS certificate of any domain — issuer, validity dates, days until expiry and subject alternative names. Email MX Checker Check whether a domain can receive email by looking up its MX records — the mail servers it points to. HTTP Response Headers Fetch the HTTP response headers of any URL — status code, content type, caching, security headers and more. Online Ping Ping a host or IP address from the server — see round-trip time, packet loss and whether the host is reachable. Reverse DNS Lookup Find the hostname associated with an IP address — the reverse of a DNS lookup. CSS Gradient Generator Design linear and radial CSS gradients visually, adjust colors and angle, and copy the CSS. CSS Box Shadow Generator Design box shadows visually — adjust offset, blur, spread, color and opacity, and copy the CSS. Meta Tags Generator Generate the HTML meta tags your page needs — title, description, Open Graph and Twitter Card — with a live code preview. Favicon Generator Create favicons from text, emoji or an uploaded image in all standard sizes — 16×16 to 512×512. My Screen Resolution See your current viewport and screen resolution — updates live as you resize the window. YouTube Embed Code Generator Generate the HTML embed code for a YouTube video with custom width, height, autoplay and other options. htaccess Generator Build Apache htaccess rules for redirects, SSL and caching.

YouTube Thumbnail Downloader Paste a YouTube URL and see the thumbnail in all available resolutions — maximum, high and standard. Download YouTube Video Download YouTube videos in MP4 — paste a link, pick a quality and save. Download YouTube Audio Extract audio from YouTube videos — save as MP3, OGG or WAV.

Download Instagram Video Save Instagram Reels and video posts to your device in MP4. Download Instagram Photo & Carousel Save photos and carousel images from Instagram posts to your device. Extract Instagram Audio Extract audio from Instagram Reels and video posts as MP3.

Download X (Twitter) Video Save videos from X/Twitter posts to your device in MP4. Download X (Twitter) Image Save images from X/Twitter posts in original quality. Extract X (Twitter) Audio Extract audio from X/Twitter video posts as MP3.

Sample AZW3 Files Download free sample AZW3 files for testing — Kindle Ebook (KF8). Sample EPUB Files Download free sample EPUB files for testing — EPUB Ebook. Sample FB2 Files Download free sample FB2 files for testing — FictionBook. Sample LRF Files Download free sample LRF files for testing — Sony BBeB Ebook. Sample MOBI Files Download free sample MOBI files for testing — Kindle Ebook (MOBI). Sample PDB Files Download free sample PDB files for testing — Palm Database Ebook. Sample SNB Files Download free sample SNB files for testing — S-Note Ebook.

Morse Code Translator Translate text to Morse code and back — and play it as sound in your browser. NATO Phonetic Alphabet Translator Spell any text as Alfa, Bravo, Charlie with the official NATO/ICAO alphabet — in your browser. Palindrome Checker Check if a word or phrase is a palindrome — ignoring case, accents and punctuation, in your browser. Weighted Average Calculator Average values that carry different weights — and find the grade you need on the next test. LCM & GCD Calculator Find the least common multiple and the greatest common divisor of any list of whole numbers, step by step. Factorial, Permutation & Combination Calculator Work out n!, arrangements, combinations and anagram counts exactly, with every step shown in your browser. Fraction Calculator & Simplifier Reduce any fraction to lowest terms and add, subtract, multiply or divide two fractions — with the GCD and the LCM shown. Fraction ↔ Decimal Converter Turn a fraction into a decimal — repeating period included — and any decimal back into an exact fraction. Scientific Notation Converter Convert any number to scientific and engineering notation, and back again, with significant figures counted. Prime Number Checker & Factorizer Check whether a number is prime, break it into prime factors, list every prime up to N and find the next one. Pythagorean Theorem Calculator Find the hypotenuse or a missing leg of a right triangle, with every step of the calculation shown. Area & Perimeter Calculator Area and perimeter of squares, rectangles, triangles, circles, trapezoids and rhombuses, with the formula applied to your numbers. Volume Calculator Volume of cubes, boxes, spheres, cylinders, cones and pyramids — plus surface area where it is direct — in your browser. Angle Converter Convert degrees, radians, gradians and degrees-minutes-seconds, with the sine, cosine and tangent of the angle. Multiplication Table Times table for any number from 1 to 100, a clickable 1-10 grid and a practice mode with a session score. Roman Numeral Converter Convert numbers to Roman numerals and back, with strict validation and a step-by-step breakdown. Portuguese Syllable Separator Type a word in Portuguese and see its syllable separation — with classification as monosyllable, disyllable, trisyllable or polysyllable. Typing Speed Test Measure your typing speed in words per minute (WPM) and accuracy — with texts in Portuguese, English and Spanish. Molar Mass Calculator Type a chemical formula and get the molar mass in g/mol, with the contribution of each element — using IUPAC 2021 atomic weights. Quadratic Equation Solver Solve ax² + bx + c = 0 — see the discriminant, the roots and whether they are real or complex. Matrix Calculator Compute the determinant, transpose or inverse of a matrix up to 10×10 — with step-by-step results. Function Plotter Type a mathematical function and see its graph plotted on an interactive canvas with axes and grid. Cardinal Points Reference The 16 compass points with their abbreviations, degrees and full names — type a bearing to find the closest direction. Average Speed Calculator Calculate speed, distance or time from any two of the three — type two and the third is computed. Free Fall Calculator Calculate how long an object takes to fall from a given height, or how far it falls in a given time — with final velocity. Kinetic & Potential Energy Calculator Calculate kinetic energy from mass and velocity, potential energy from mass and height, or both at once. Ohm's Law Calculator Fill in any two of voltage, current, resistance and power — the other two are calculated instantly. Weight on Other Planets See how much you would weigh on the Moon, Mars, Jupiter and every planet in the solar system. Dilution Calculator (C₁V₁ = C₂V₂) Solve the dilution equation for any unknown — concentration or volume — in one step. pH Calculator Enter pH, pOH, [H⁺] or [OH⁻] and see the other three instantly — at 25 °C. Chemical Equation Balancer Type a chemical equation and get the balanced version with the smallest whole-number coefficients. Resistor Color Code Calculator Select the color bands on a resistor to read its resistance and tolerance — or find the colors for a known value. Speed Reading Trainer Paste text and read it word by word at an adjustable speed in words per minute.

What Day of the Week Was It? Find the day of the week of any date from 1583 to 9999, with day of the year, ISO week and leap-year facts. Zodiac Sign Lookup Type a date of birth and see the zodiac sign, the date range, the element, the quality and a brief description. Numerology Calculator Type your full name and date of birth to see the life path, expression, soul urge and personality numbers in the Pythagorean system. Rising Sign Calculator Estimate your rising sign (ascendant) from your date and time of birth — a simplified solar-time calculation. Simplified Birth Chart See your sun, moon and rising signs with element balance — a simplified astrology chart from your birth date. Daily Tarot Draw Draw one or three cards from the 78-card Rider-Waite deck — with upright and reversed meanings for reflection. Weight on Other Planets See how much you would weigh on the Moon, Mars, Jupiter and every planet in the solar system. Movable Dates Calculator Find Carnival, Easter, Corpus Christi, Mother's Day and other movable dates for any year. What Is My Zodiac Sign? Type your birth date to find your Western zodiac sign — with dates, element and quality. Chinese Zodiac Sign Enter your birth year to find your Chinese zodiac animal — with element and personality traits.

Plant Spacing Calculator Calculate how many plants or trees fit in an area based on row and plant spacing. Lawn Seed Calculator Calculate how much grass seed you need for a given area — with typical rates for common species. NPK Fertilizer Calculator Calculate how much fertilizer product to apply based on the N-P-K ratio, the nitrogen requirement and the area.

Paint Calculator Work out how many litres of paint a room needs and which cans to buy — right in your browser. Wire Gauge Converter (AWG ↔ mm²) Convert between AWG and mm² wire sizes, with diameter and indicative ampacity for copper conductors. Concrete Calculator Calculate the volume of concrete for a slab, beam or column — and how many bags of cement, sand and gravel to buy. Ohm's Law Calculator Fill in any two of voltage, current, resistance and power — the other two are calculated instantly. Resistor Color Code Calculator Select the color bands on a resistor to read its resistance and tolerance — or find the colors for a known value. Voltage Divider Calculator Calculate the output voltage of a resistive voltage divider from Vin, R₁ and R₂. Series & Parallel Resistor Calculator Add resistors and see the total resistance in series and in parallel — for any number of resistors. Standby Power Cost Calculator See how much a device costs per year just by being plugged in — in watts, kWh and reais. UPS / Nobreak Capacity Calculator Find the minimum VA rating for a UPS to handle your load, based on watts and power factor.

CNJ Lawsuit Number Validator Validate and decode a Brazilian unified lawsuit number — court, segment, year and origin — in your browser. Procedural Deadline Calculator (CPC) Count a CPC procedural deadline in business days or calendar days from the date of service, with Brazilian national holidays excluded. Late Payment Interest Calculator Calculate interest and penalty on overdue payments using Brazilian legal standards — 1% per month plus a 2% fine. Legal Amount in Full (Portuguese) Write a monetary amount in full in the Brazilian legal format — for contracts, checks and notarial acts.

Invoice & Receipt Generator Fill in the items and download a clean invoice or receipt PDF — totals in exact cents, built in your browser. Privacy Policy Generator Fill in your company details and generate a privacy policy based on Brazilian LGPD requirements — a starting template, not legal advice. Terms of Use Generator Fill in your website details and generate terms of use — a starting template, not legal advice. Promissory Note Generator Fill in the fields and print a promissory note in the Brazilian legal format. Receipt Generator Generate and print a receipt in the standard Brazilian format.

CPF Generator & Validator Generate valid CPF numbers for software testing and validate any CPF instantly. CNPJ Generator & Validator Generate valid CNPJ numbers for software testing and validate any CNPJ instantly. Pix Key Validator Detect the type of a Pix key and check its format — CPF, CNPJ, e-mail, phone or random key — in your browser. IBAN Validator Validate an international bank account number, check its length by country and format it in blocks — in your browser. Profit Margin & Markup Calculator Turn cost and price into profit margin, markup and profit in reais — or work backwards to the price you should charge. Product Pricing Calculator Find the sale price that covers your cost, taxes, fees and commission and still leaves the profit margin you want. Break-Even Point Calculator Find how many units you must sell each month to cover your fixed costs — and what revenue that adds up to. Contribution Margin Calculator See how much each sale leaves to pay the fixed costs, in reais and as a percentage of the price. ROI Calculator Work out the return on investment of anything you put money into — and the annualized rate when you add the period. Customer Lifetime Value Calculator Estimate what a customer is worth over the whole relationship — in revenue, in profit and against your CAC. Freelance Hourly Rate Calculator Turn your monthly income goal and fixed costs into the hourly rate you actually need to charge. Meeting Cost Calculator See what a meeting costs in salary time — with a live timer that counts the money as it runs. Employee Cost Calculator (Employer Cost) Turn a salary into what an employee really costs the company — charges, provisions, and the difference Simples Nacional makes. Chinese Yuan Today The commercial yuan rate with the time it was taken, a two-way converter and the amounts an importer or a supplier quote actually uses. Indian Rupee Today The commercial Indian rupee rate with the time it was taken, a two-way converter and what to know before pricing anything from India. Fictitious Company Generator Generate a fictitious Brazilian company with trade name, CNPJ, state registration and address — for software testing. Business Days Calculator Count the business days between two dates, excluding weekends and Brazilian national holidays. Card Machine Rate Comparator Type a sale amount and see what each major Brazilian card machine charges — sorted by who gives you the most money. Marketplace Profit Calculator Type the selling price and product cost to see your real profit on Mercado Livre, Shopee, Amazon or Magalu — after commission, payment fees and shipping. Number to Words (PT-BR) Type a number and see it written out in full — in Brazilian Portuguese, with optional currency format (reais and centavos). Depreciation Calculator Calculate asset depreciation using straight-line, declining balance or sum-of-years digits — with a year-by-year table. Working Capital Calculator Calculate net working capital and liquidity ratios — current, quick and cash — from your balance sheet figures. Payback Period Calculator Calculate the simple and discounted payback period of an investment from its cash flows. Pro-Labore Calculator Calculate the net pro-labore of a company partner after INSS (individual contributor) and IRRF withholding. CAC and LTV Calculator Calculate CAC and LTV for unit economics. ROAS Calculator Divide revenue by ad spend for ROAS. CNPJ Lookup Look up a Brazilian CNPJ and see the company name, status and address.

Simple Interest Calculator Calculate simple interest and the final amount — or leave one field empty to find the principal, rate or time. Loan Amortization Calculator Compare SAC and Price amortization systems — see the first and last installment, total interest and total paid for any loan amount and rate. Installment Simulator See exactly how much each installment costs — with interest, down payment and total paid. Late Payment Interest Calculator Calculate interest and penalty on overdue payments using Brazilian legal standards — 1% per month plus a 2% fine. Inflation Correction Calculator Correct a value from one year to another using IPCA or IGP-M — the two main Brazilian price indices. Equivalent Rate Converter Convert interest rates between monthly, annual and daily. Installment vs Cash Compare installments against cash considering opportunity cost. Consortium Simulator Simulate consortium installments with admin fee.

Percentage Calculator The three classic percentage problems solved instantly: X% of Y, X is what % of Y, and % change. Rule of Three Calculator Solve direct and inverse proportions: enter three known values and get the fourth, with the math spelled out. Pix Key Validator Detect the type of a Pix key and check its format — CPF, CNPJ, e-mail, phone or random key — in your browser. Discount Calculator Work out the price after a discount, the percentage between two prices, and what stacked discounts really add up to. Bill Split Calculator Split a bill between friends, with or without the service charge, and round up per person if you want. Fuel Cost & Consumption Calculator Find your real km/l, the fuel cost of a trip, and whether ethanol or gasoline is the better buy today. Unit Price Comparator Compare up to four pack sizes and see which one really costs less per kilo, litre or unit — in your browser. Appliance Energy Cost Calculator See how many kWh an appliance uses a month and what it costs in reais — right in your browser. Salary to Hourly Rate Converter Convert a monthly salary into an hourly rate and back, using the 220-hour CLT base or your own. Pix QR Code Generator Turn a Pix key into a QR code and a copy-and-paste code, right in your browser. INSS Contribution Calculator See exactly how much INSS is deducted from a CLT salary, band by band, with the 2026 table on screen and editable. IRRF Withholding Calculator How much income tax is withheld from a CLT salary, including the 2026 exemption reducer, with the table editable on screen. Net Salary Calculator (CLT) Turn a gross salary into what actually lands in your account: INSS, income tax, dependants and the 2026 exemption reducer. Reverse Salary Calculator (Net to Gross) Say what you want to take home and see the gross salary that pays it, proved by recalculating the payslip. FGTS Calculator See the 8% your employer deposits every month, project the balance and check the termination penalty. Vale-Transporte Discount Calculator Check what your employer may deduct for transport: the lesser of 6% of your basic salary or the real fare. Overtime Pay Calculator Turn a monthly salary into the value of each overtime hour at 50%, 100% or your union rate — with the DSR reflex. Night Shift Premium Calculator Work out the night premium with the reduced night hour: 52 min 30 s count as an hour, so 7 hours on the clock pay as 8. Severance Pay Calculator (CLT) Check a Brazilian termination line by line: proportional notice, 13th salary, holiday pay, the FGTS penalty and what is withheld. Vacation Pay Calculator (Férias + 1/3) See what really lands in your account: the days off, the constitutional third, the days you sell back — and why the sold days are tax free. Proportional Vacation Calculator (Twelfths) Count the twelfths a contract earned and price them, with the 15-day rule that decides whether the last month counts at all. 13th Salary Calculator Work out both instalments of the 13th salary: the first with no deductions, the second carrying INSS and tax on the whole amount. Seguro-Desemprego Calculator Work out the monthly unemployment benefit and how many instalments you are owed, with the official bands on screen and editable. PJ vs CLT Calculator Compare a CLT salary with a PJ contract honestly: 13th, holiday third, FGTS and the expected penalty against the DAS, the accountant and no safety net. Travel Dollar Rate (Dólar Turismo) See what a dollar really costs at the counter: the commercial rate plus the bureau spread and the IOF, for cash, prepaid card and credit card. Travel Euro Rate (Euro Turismo) What a euro really costs at the counter: the commercial rate, the bureau spread and the IOF — plus why the euro in reais moves for two reasons at once. Currency Converter Convert between any two of sixteen currencies and gold, at the commercial reference stored every 30 minutes — with the rate and its timestamp on screen. Brazilian Bank Code Lookup Search for any Brazilian bank by name, COMPE code or ISPB number — the codes used in TED, DOC and Pix transfers. Fixed Income Comparator Compare CDB, LCI/LCA and Treasury bonds after income tax. Best Card Purchase Day Find the day that gives the longest credit card float. Inflation Calculator See how much a past amount is worth today using IPCA or IGP-M.

Investment Simulator See how an initial investment plus monthly contributions grows with compound interest, and how much income tax takes at the end. Cashback Calculator See how much cashback you earn at a given rate. Miles Value Calculator Find how much each mile or point is worth in reais. 50/30/20 Budget Split income into needs, wants and savings. Savings Account Simulator Simulate savings account yield using the Selic rule. First Million Calculator See how long to reach one million with compound interest. Financial Independence Calculate the portfolio for the 4% withdrawal rule. Net Worth Calculator Add assets, subtract liabilities, see net worth. Rent vs Buy Calculator Compare total cost of renting vs financing.

Color Converter Convert a color between HEX, RGB, HSL, HSV and CMYK with live two-way sync, in your browser. WCAG Contrast Checker Check the contrast ratio between two colors and see whether it passes WCAG AA and AAA, live in your browser. Image Color Picker Upload an image and click any pixel to get its exact HEX, RGB and HSL — processed entirely on your device. Color Mixer Mix two colors with a proportion slider and read the whole 11-step scale between them, in your browser. Tints & Shades Generator Turn one color into complete tint, shade and tone scales and export them as CSS variables, in your browser. Color Palette Generator Pick a base colour and generate harmonious palettes — complementary, triadic, analogous, split-complementary and monochromatic. CSS Gradient Generator Design linear and radial CSS gradients visually, adjust colors and angle, and copy the CSS. CSS Box Shadow Generator Design box shadows visually — adjust offset, blur, spread, color and opacity, and copy the CSS. Image Palette Extractor Upload an image and extract its dominant colors — click any swatch to copy the hex code. Color Palette Explorer Browse curated palettes from Material Design, Tailwind CSS and Flat UI Colors. Color Blindness Simulator Upload an image and preview it through protanopia, deuteranopia and tritanopia filters.

Image Resizer Resize images to exact dimensions in your browser — the file never leaves your device. Image to Base64 Converter Convert an image to a Base64 Data URI with ready-to-paste HTML and CSS snippets — no upload involved. Image Compressor Compress JPEG and WebP images with a live quality slider — entirely in your browser. Image Format Converter Convert images between PNG, JPEG and WebP in your browser — no upload, no sign-up. Rotate & Flip Image Rotate an image by 90° or 180° and mirror it horizontally or vertically — right in your browser. Image Color Picker Upload an image and click any pixel to get its exact HEX, RGB and HSL — processed entirely on your device. Aspect Ratio Calculator Simplify any width × height into its aspect ratio, or find the missing dimension — in your browser. Image to PDF Converter Turn photos and screenshots into one PDF, a page per image — built in your browser. Social Media Image Sizes Quick reference for the recommended image dimensions of every format on Instagram, Facebook, X, LinkedIn, TikTok, YouTube and Pinterest. Image Cropper Crop images in your browser — drag the crop area, choose an aspect ratio and get the result instantly. Image Pixelator Apply a mosaic or pixelation effect to any image, right in the browser — adjust the block size and see the result live. EXIF & Metadata Remover Strip all metadata from an image — EXIF, GPS location, camera info — by re-exporting through the browser canvas. Favicon Generator Create favicons from text, emoji or an uploaded image in all standard sizes — 16×16 to 512×512. YouTube Thumbnail Downloader Paste a YouTube URL and see the thumbnail in all available resolutions — maximum, high and standard. Image Filters Apply visual filters to images: grayscale, sepia, blur, brightness, contrast and more. Image Watermark Add a text watermark to images with custom position, size and opacity. SVG to JPG/PNG Converter Convert SVG vector files to JPG or PNG raster images at any size. BMP to JPG Converter Convert BMP bitmap images to compressed JPG format. HEIC to JPG/PNG Converter Convert iPhone HEIC/HEIF photos to universal JPG or PNG format. Base64 to Image Decoder Decode a Base64 string and display or download it as an image file. ICO to PNG Converter Extract all image sizes from ICO files and save them as PNG. PNG to ICO Converter Create ICO icon files from PNG images with multiple sizes.

Pix QR Code Generator Turn a Pix key into a QR code and a copy-and-paste code, right in your browser. Wi-Fi QR Code Generator Create a QR code that connects any phone to your Wi-Fi network in one scan — built in your browser. vCard QR Code Generator Turn your contact details into a QR code anyone can scan to save you — generated in your browser. QR Code Reader Read any QR code with your camera or from an image file — decoded in your browser. Barcode Generator Create EAN-13, EAN-8, UPC, ITF-14, CODE128 and CODE39 barcodes and download the PNG — all in your browser. QR Code Generator Generate a QR code from any text, URL, e-mail address, phone number or SMS — free, instant, no sign-up.

List Shuffler Shuffle lines into a truly random order with Fisher-Yates — or draw the first N as winners. Random Number Generator Draw random numbers in any range, with or without repeats, right in your browser. Random Name Picker Paste a list of names and draw winners at random, with a suspense animation and no repeats. Coin Flip Flip a virtual coin with a spin animation, a running score and a batch mode for statistics. Virtual Dice Roller Roll d4 to d100 dice with modifiers and RPG notation like 3d6+2 — right in your browser. Lottery Number Generator Generate random games for Mega-Sena, Quina, Lotofácil and more — with the real odds shown. Reaction Time Test Measure your reaction time in milliseconds over five attempts and compare it to human averages. Team Randomizer Split a list of people into balanced random teams, with optional fixed captains and editable names. Random Word Generator Generate a random list of Portuguese words — for brainstorming, word games, creative writing or any time you need a prompt. Daily Tarot Draw Draw one or three cards from the 78-card Rider-Waite deck — with upright and reversed meanings for reflection. Online Scoreboard Keep score for any tabletop game — add players, tap to add or subtract points, and see the standings. Decision Wheel Add your options, spin the wheel and let randomness decide — perfect for breaking deadlocks. Goal Difference & Standings Calculator See where your team stands — current goal difference, points needed, and how many wins it takes to qualify.

PPI / DPI Calculator Find the pixel density, dot pitch and sharpness class of any screen from its resolution and diagonal — in your browser. Microphone Test Check your microphone with a live level meter in your browser — nothing is recorded. Headphone & Stereo Test Test left and right channels, balance and frequency response with tones generated in your browser. Webcam Test Preview your camera, see its real resolution and frame rate and take a photo — all in your browser. Reaction Time Test Measure your reaction time in milliseconds over five attempts and compare it to human averages. Typing Speed Test Measure your typing speed in words per minute (WPM) and accuracy — with texts in Portuguese, English and Spanish. What Is My IP See your public IP address and approximate location — city, state, country — detected from the connection, with nothing to install. Internet Speed Test Measure your download speed, upload speed and latency by transferring data to and from this server — nothing to install. My Browser Info See your browser, operating system, screen resolution, language and other details your device reveals to every website you visit. My HTTP Headers See every HTTP header your browser sends with each request — user agent, accepted languages, encoding, cookies and more. Tone Generator Generate a pure tone at any frequency from 20 Hz to 20 kHz — sine, square, triangle or sawtooth. Decibel Meter Measure the ambient sound level in decibels using your device microphone — no app needed. My Coordinates See your current geographic coordinates using your device's GPS — latitude, longitude and accuracy. Digital Compass Turn your phone into a compass — see the magnetic heading in degrees and the cardinal direction in real time. Keyboard Tester Press any key to see its name, code and keyCode — test every key on your keyboard. Dead Pixel Test Fill the screen with a solid color to find dead or stuck pixels on your monitor. Monitor Info See your screen resolution, color depth, pixel ratio and physical pixel count. My Screen Resolution See your current viewport and screen resolution — updates live as you resize the window. Mouse & Trackpad Tester Test your mouse buttons, scroll wheel and cursor position — all in the browser. Digital Bubble Level Use your phone's accelerometer as a digital level — see the angle and a bubble indicator. Screen Color Test Fill the screen with a single color — white, black, red, green, blue or any custom color.

URL Encoder & Decoder Percent-encode and decode URLs or query parameters without breaking special characters. UTM Link Builder Build tagged campaign URLs with utm_source, utm_medium and utm_campaign — correctly encoded, in your browser. WhatsApp Link Generator Turn a phone number into a wa.me click-to-chat link with the first message already written. CAC and LTV Calculator Calculate CAC and LTV for unit economics. ROAS Calculator Divide revenue by ad spend for ROAS. Lead Goal Calculator Work backwards from revenue to find leads needed. Email Marketing ROI Calculate email marketing return on investment. Traffic Budget Calculator Multiply clicks by CPC for ad budget. Psychological Pricing See how different price endings affect perceived value. Buyer Persona Generator Fill in a form and get a structured buyer persona. Google Review Link Generate a direct link for customers to leave a Google review.

Character & Word Counter Count characters, words, lines and paragraphs in real time as you type or paste. Text Case Converter Convert text between UPPERCASE, lowercase, Title Case, Sentence case and iNVERTED case. Fancy Font Generator Turn plain text into bold, italic, script, gothic and other Unicode styles to copy anywhere. Strikethrough & Small Text Generator Create strikethrough, underlined, dotted, superscript and subscript text with Unicode — in your browser. Username Generator Create pronounceable, memorable usernames with an optional base word, numbers and separators. WhatsApp Link Generator Turn a phone number into a wa.me click-to-chat link with the first message already written. Engagement Rate Calculator Calculate the engagement rate of your posts and compare it with the typical range for your account size. YouTube Revenue Estimator Estimate monthly and yearly YouTube ad revenue from your views and your own RPM. vCard QR Code Generator Turn your contact details into a QR code anyone can scan to save you — generated in your browser. Social Media Character Counter Type your text and see instantly whether it fits the character limits of X, Instagram, Facebook, LinkedIn, TikTok, YouTube, Pinterest and Threads. Social Media Image Sizes Quick reference for the recommended image dimensions of every format on Instagram, Facebook, X, LinkedIn, TikTok, YouTube and Pinterest. Social Media Video Specs Quick reference for video duration, aspect ratio, resolution and file size limits on Instagram, TikTok, YouTube, Facebook, LinkedIn, X and Pinterest. Best Times to Post on Social Media See the best days and times to post on Instagram, Facebook, X, LinkedIn, TikTok, YouTube and Pinterest — based on engagement data. YouTube Thumbnail Downloader Paste a YouTube URL and see the thumbnail in all available resolutions — maximum, high and standard. Thread Splitter Split long text into parts of a maximum character count — ready for Twitter/X threads or Instagram carousels. Instagram Caption Formatter Format your Instagram caption with clean line breaks, invisible characters and dot separators. Hashtag Counter Paste text and see how many hashtags it contains — Instagram allows up to 30 per post. YouTube Timestamp Generator Build a clickable timestamp list for YouTube video descriptions — type the times and labels. YouTube Embed Code Generator Generate the HTML embed code for a YouTube video with custom width, height, autoplay and other options. Reddit Markdown Formatter Format text with Reddit's Markdown syntax — bold, italic, links, lists, quotes, code blocks and tables. Email Signature Generator Create an HTML email signature with your info and social links. Influencer Pricing Calculator Estimate how much to charge for a sponsored post based on followers and engagement. Download YouTube Video Download YouTube videos in MP4 — paste a link, pick a quality and save. Download YouTube Audio Extract audio from YouTube videos — save as MP3, OGG or WAV. Download Instagram Video Save Instagram Reels and video posts to your device in MP4. Download Instagram Photo & Carousel Save photos and carousel images from Instagram posts to your device. Extract Instagram Audio Extract audio from Instagram Reels and video posts as MP3. Download X (Twitter) Video Save videos from X/Twitter posts to your device in MP4. Download X (Twitter) Image Save images from X/Twitter posts in original quality. Extract X (Twitter) Audio Extract audio from X/Twitter video posts as MP3.

Slug Generator Turn any title into a clean URL slug — lowercase, no accents, no spaces, ready to share. Email, URL & Phone Extractor Extract email addresses, links and Brazilian phone numbers from any text in your browser. Reading Time Calculator Estimate silent and read-aloud reading time for any text, live as you type — right in your browser. UTM Link Builder Build tagged campaign URLs with utm_source, utm_medium and utm_campaign — correctly encoded, in your browser. Robots.txt Generator Build a valid robots.txt with presets, custom rules, AI-crawler blocking and your sitemap line. llms.txt Generator Create an llms.txt file that tells AI assistants which pages of your site actually matter. Hreflang Tags Generator Build the complete hreflang link block for your multilingual pages in your browser. XML Sitemap Generator Turn a list of URLs into a valid sitemap.xml, generated and downloaded in your browser. Privacy Policy Generator Fill in your company details and generate a privacy policy based on Brazilian LGPD requirements — a starting template, not legal advice. Terms of Use Generator Fill in your website details and generate terms of use — a starting template, not legal advice. Email MX Checker Check whether a domain can receive email by looking up its MX records — the mail servers it points to. HTTP Response Headers Fetch the HTTP response headers of any URL — status code, content type, caching, security headers and more. SERP Preview See how your page will look in Google search results — with live character counts for title and description. Meta Tags Generator Generate the HTML meta tags your page needs — title, description, Open Graph and Twitter Card — with a live code preview. Google Review Link Generate a direct link for customers to leave a Google review. Schema.org Generator Build JSON-LD structured data for articles, products, FAQs and other types.

Microphone Test Check your microphone with a live level meter in your browser — nothing is recorded. Headphone & Stereo Test Test left and right channels, balance and frequency response with tones generated in your browser. Musical Scale Generator Pick a root note and a scale type to see all the notes and the diatonic chords — major, minor, modes, pentatonic, blues and more. Voice Recorder Record audio from your microphone in the browser — playback and download, nothing uploaded. Tone Generator Generate a pure tone at any frequency from 20 Hz to 20 kHz — sine, square, triangle or sawtooth. Online Metronome Keep time with an adjustable metronome — 40 to 240 BPM, multiple time signatures, accent on beat one. Audio Trimmer Trim an audio file to a specific time range with waveform visualization — export as WAV, no upload. Instrument Tuner Tune any instrument with your microphone — real-time pitch detection shows the note and how many cents sharp or flat. Decibel Meter Measure the ambient sound level in decibels using your device microphone — no app needed. Speech to Text Dictate and see your words appear as text — using your browser's built-in speech recognition, no installation needed. BPM Tap Tempo Tap the button or press any key to the beat and see the BPM — stabilises after 4-5 taps. Delay & Reverb Time Calculator Type a BPM and see the delay times in milliseconds for every note value — quarter, eighth, dotted, triplet. Musical Note ↔ Frequency Converter Convert between musical notes and their frequency in Hz — with adjustable A4 tuning. Chord Transposer Paste chords or a chord chart and transpose up or down by any number of semitones. Audio Sample Rate & File Size Calculator See how sample rate, bit depth and channels affect file size and the Nyquist frequency limit. Streaming Royalties Calculator See how much plays pay on Spotify, Apple Music, YouTube Music and other platforms. Playlist Duration Calculator Paste track durations to get the total length and the end time if you press play now. Extract Audio from Video Pull the audio track out of any video file — save as MP3 or WAV. No upload, no server.

Depth of Field Calculator Calculate how much of the scene is in focus — near limit, far limit and hyperfocal distance — from focal length, aperture and distance. Rule of 500 / NPF for Astrophotography Find the maximum shutter speed for sharp stars — with the rule of 500, the stricter rule of 300 and the NPF formula. 35mm Equivalent Focal Length Convert any focal length to its 35mm equivalent using the crop factor of your sensor. Golden Hour Calculator Find the golden hour and blue hour times for any latitude and date — for photography planning.

Bitrate Calculator Convert between duration, file size and bitrate for audio and video — in your browser. Aspect Ratio Calculator Simplify any width × height into its aspect ratio, or find the missing dimension — in your browser. Webcam Test Preview your camera, see its real resolution and frame rate and take a photo — all in your browser. Social Media Video Specs Quick reference for video duration, aspect ratio, resolution and file size limits on Instagram, TikTok, YouTube, Facebook, LinkedIn, X and Pinterest. Video to GIF Convert any video clip to an animated GIF — set start, end, FPS and width. Runs entirely in your browser via WebAssembly. Trim Video Cut a video to keep only the part you want — set start and end times. No upload, no server. Compress Video Reduce video file size by re-encoding at a lower quality — choose high, medium or low. 100% in your browser. Extract Audio from Video Pull the audio track out of any video file — save as MP3 or WAV. No upload, no server.

Fuel Cost & Consumption Calculator Find your real km/l, the fuel cost of a trip, and whether ethanol or gasoline is the better buy today. Brazilian Area Code (DDD) Lookup Find which cities belong to a DDD, or which DDD covers a city — the complete Brazilian area code map. Gasoline vs Ethanol Calculator Compare the real cost of gasoline and ethanol using the 70% rule and the cost per kilometre with your car's actual mileage. Cost per Kilometre Calculator Type the distance, your car's average consumption and the fuel price to see how much the trip costs and the cost per kilometre. Brazilian Traffic Fine Lookup Search Brazilian traffic infractions by article or keyword — see the severity, points and fine amount from the CTB. Tire Size Calculator Decode a tire size like 205/55R16 into width, sidewall height, overall diameter and circumference. CEP Lookup Type a Brazilian CEP (ZIP code) and see the street, neighbourhood, city and IBGE code instantly. Reverse CEP Lookup Search by state, city and street name to find the CEP — when you know the address but not the postal code. FIPE Table Lookup Look up the FIPE reference price for any car, motorcycle or truck in Brazil.

Appliance Energy Cost Calculator See how many kWh an appliance uses a month and what it costs in reais — right in your browser. Paint Calculator Work out how many litres of paint a room needs and which cans to buy — right in your browser. Floor Tile Calculator Turn a room into tiles, square metres and boxes — with the waste margin already included. Wire Gauge Converter (AWG ↔ mm²) Convert between AWG and mm² wire sizes, with diameter and indicative ampacity for copper conductors. Shopping List Organize your shopping list by category — produce, dairy, meat and more — with checkboxes and local storage. Concrete Calculator Calculate the volume of concrete for a slab, beam or column — and how many bags of cement, sand and gravel to buy. Torque Converter Convert between newton-metres, kilogram-force metres, pound-feet and other torque units. Flow Rate Converter Convert between litres per minute, cubic metres per hour, US gallons per minute and other flow rate units. Standby Power Cost Calculator See how much a device costs per year just by being plugged in — in watts, kWh and reais. Dew Point Calculator Calculate the dew point from temperature and humidity — the temperature at which moisture starts to condense. Rainfall Volume Calculator Convert millimetres of rain to litres of water collected over a given area. Swimming Pool Volume Calculator Calculate the volume of a pool in litres from its shape and dimensions — rectangular, circular or oval. Plant Spacing Calculator Calculate how many plants or trees fit in an area based on row and plant spacing. Lawn Seed Calculator Calculate how much grass seed you need for a given area — with typical rates for common species.

Cooking Measurement Converter Convert cups, spoons, millilitres and fluid ounces in your browser — with the cup standard your recipe actually uses. Recipe Scaler Paste an ingredient list and rescale every quantity to the servings you want — fractions stay fractions. Cups to Grams Converter Convert cups, tablespoons and teaspoons to grams by ingredient — or the other way around — with densities from the King Arthur and FAO databases. Oven Temperature Converter Convert oven temperatures between Celsius, Fahrenheit and British gas marks, with fan-oven adjustment and the Brazilian recipe names. Yeast & Leavening Converter Convert between fresh, active dry and instant yeast — and between baking powder, baking soda and cream of tartar — with the ratios that actually work. Shopping List Organize your shopping list by category — produce, dairy, meat and more — with checkboxes and local storage. BBQ Calculator Calculate how much meat, drinks, charcoal and sides to buy for a Brazilian churrasco — by number of guests and duration.

Heart Rate Zones Calculator Find your estimated maximum heart rate and the five training zones in bpm — calculated in your browser. Running Pace Calculator Convert distance, time and pace, get your speed and see predicted race times — all in your browser. One-Rep Max Calculator Estimate your 1RM from any set with Epley and Brzycki, plus a percentage table to plan the session. Calorie Burn Calculator by Activity Pick an activity, enter your weight and how long it lasted, and see the calorie burn worked out from the MET table — with the MET on screen and editable. Race Time Predictor Predict your time for a target distance based on a known race result — using the Riegel formula. Pace Table & Split Calculator Set a target time for any race distance and see the pace per km and every kilometre split. Training Pace Zones Calculate your five training pace zones from a threshold or race pace — for structured running training. Goal Difference & Standings Calculator See where your team stands — current goal difference, points needed, and how many wins it takes to qualify.

Age Calculator Find the exact age in years, months and days, with total days lived and the countdown to the next birthday. Dog & Cat Age Calculator Convert your dog or cat age into human years using the real non-linear curve — the "times 7" rule is a myth. Child Growth Percentile Calculator Plot a child's weight, height and head circumference against the WHO growth curves and see where they land — percentile and z-score, from birth to 19 years. Animal Gestation & Egg Incubation Calculator Enter the mating or egg-setting date and the species to see the likely birth or hatching window — from dogs and cats to cattle, horses and poultry. Daily Pet Food Calculator How many grams of food a dog or cat needs per day, worked out from the veterinary energy equation and the caloric density on the food label. Baby Name Generator Browse and shuffle baby names used in Brazil, each with its verified etymology and origin — filtered by sex, initial letter and language of origin. Wedding Anniversary Lookup Enter your wedding date and see how many years it has been, which anniversary you are celebrating, and the traditional material for each milestone. Gestational Age Calculator Type the date of your last period or the conception date and see the gestational age in weeks, the estimated due date and weekly milestones. Breastfeeding Log Track feedings by side, time and duration — see today's total and your recent history, stored locally on your device. Corrected Age Calculator for Premature Babies Calculate the corrected age of a premature baby — the age adjusted for weeks born early.

BMI Calculator Calculate your Body Mass Index from weight and height, with the WHO bands and the healthy weight range for your height. BMR & Daily Calories Calculator Estimate your basal metabolic rate and daily calorie needs with Mifflin-St Jeor or Harris-Benedict, right in your browser. Daily Water Intake Calculator Estimate how much water to drink per day from your weight, exercise and heat — calculated in your browser. Heart Rate Zones Calculator Find your estimated maximum heart rate and the five training zones in bpm — calculated in your browser. Running Pace Calculator Convert distance, time and pace, get your speed and see predicted race times — all in your browser. Ideal Weight Calculator Compare four classic ideal-weight formulas with the healthy BMI range for your height, in your browser. Macro Calculator Split your daily calories into protein, carbs and fat — grams and percentages, in your browser. One-Rep Max Calculator Estimate your 1RM from any set with Epley and Brzycki, plus a percentage table to plan the session. Clothing Size Converter Type your body measurements and see the corresponding clothing size in BR, EU, US and UK — with the full chart on screen. Ring Size Converter Measure your finger circumference and see the corresponding ring size in BR (aro), ISO, US and UK — based on NBR 16058. Bra Size Converter Type your underbust and bust measurements and see the corresponding bra size in BR, EU, US and UK — with band and cup charts on screen. Calorie Burn Calculator by Activity Pick an activity, enter your weight and how long it lasted, and see the calorie burn worked out from the MET table — with the MET on screen and editable. Lab Test Unit Converter Convert blood test results between conventional and SI units — the factor comes from the molar mass and never goes out of date. Child Growth Percentile Calculator Plot a child's weight, height and head circumference against the WHO growth curves and see where they land — percentile and z-score, from birth to 19 years. Gestational Age Calculator Type the date of your last period or the conception date and see the gestational age in weeks, the estimated due date and weekly milestones. Breastfeeding Log Track feedings by side, time and duration — see today's total and your recent history, stored locally on your device. Sleep Cycle Calculator Find the best times to go to sleep or wake up based on 90-minute sleep cycles. Jet Lag Calculator Estimate how many days your body needs to adjust after crossing time zones. Corrected Age Calculator for Premature Babies Calculate the corrected age of a premature baby — the age adjusted for weeks born early. Hydrogen Peroxide Dilution Calculator Dilute hydrogen peroxide from one volume concentration to another — common in Brazilian pharmacy and beauty use.

Character & Word Counter Count characters, words, lines and paragraphs in real time as you type or paste. Invisible Character Detector Detect, reveal and remove invisible Unicode characters — zero-width spaces, NBSP, bidi marks and more. Palindrome Checker Check if a word or phrase is a palindrome — ignoring case, accents and punctuation, in your browser. Email, URL & Phone Extractor Extract email addresses, links and Brazilian phone numbers from any text in your browser. Reading Time Calculator Estimate silent and read-aloud reading time for any text, live as you type — right in your browser. Word Frequency Counter Paste any text and see which words appear most often — with optional stopword filtering in Portuguese, English or Spanish. Portuguese Syllable Separator Type a word in Portuguese and see its syllable separation — with classification as monosyllable, disyllable, trisyllable or polysyllable. Social Media Character Counter Type your text and see instantly whether it fits the character limits of X, Instagram, Facebook, LinkedIn, TikTok, YouTube, Pinterest and Threads. Word Cloud Generator Paste text and see a visual word cloud on canvas.

Fancy Font Generator Turn plain text into bold, italic, script, gothic and other Unicode styles to copy anywhere. Strikethrough & Small Text Generator Create strikethrough, underlined, dotted, superscript and subscript text with Unicode — in your browser. Reverse & Mirror Text Reverse your text, words or lines, or mirror it with flipped Unicode characters — in your browser. Morse Code Translator Translate text to Morse code and back — and play it as sound in your browser. NATO Phonetic Alphabet Translator Spell any text as Alfa, Bravo, Charlie with the official NATO/ICAO alphabet — in your browser. Symbol Picker Browse and copy arrows, math symbols, currency signs and special characters. Emoji Picker Search and copy emojis by category or keyword.

INSS Contribution Calculator See exactly how much INSS is deducted from a CLT salary, band by band, with the 2026 table on screen and editable. IRRF Withholding Calculator How much income tax is withheld from a CLT salary, including the 2026 exemption reducer, with the table editable on screen. Net Salary Calculator (CLT) Turn a gross salary into what actually lands in your account: INSS, income tax, dependants and the 2026 exemption reducer. Reverse Salary Calculator (Net to Gross) Say what you want to take home and see the gross salary that pays it, proved by recalculating the payslip. FGTS Calculator See the 8% your employer deposits every month, project the balance and check the termination penalty. Vale-Transporte Discount Calculator Check what your employer may deduct for transport: the lesser of 6% of your basic salary or the real fare. Overtime Pay Calculator Turn a monthly salary into the value of each overtime hour at 50%, 100% or your union rate — with the DSR reflex. Night Shift Premium Calculator Work out the night premium with the reduced night hour: 52 min 30 s count as an hour, so 7 hours on the clock pay as 8. Severance Pay Calculator (CLT) Check a Brazilian termination line by line: proportional notice, 13th salary, holiday pay, the FGTS penalty and what is withheld. Vacation Pay Calculator (Férias + 1/3) See what really lands in your account: the days off, the constitutional third, the days you sell back — and why the sold days are tax free. Proportional Vacation Calculator (Twelfths) Count the twelfths a contract earned and price them, with the 15-day rule that decides whether the last month counts at all. 13th Salary Calculator Work out both instalments of the 13th salary: the first with no deductions, the second carrying INSS and tax on the whole amount. Seguro-Desemprego Calculator Work out the monthly unemployment benefit and how many instalments you are owed, with the official bands on screen and editable. Employee Cost Calculator (Employer Cost) Turn a salary into what an employee really costs the company — charges, provisions, and the difference Simples Nacional makes. Brazilian Minimum Wage — Current and Historical The current Brazilian minimum wage and the full history since 1994, with daily and hourly values and the legal basis for each change. Pro-Labore Calculator Calculate the net pro-labore of a company partner after INSS (individual contributor) and IRRF withholding.

Salary to Hourly Rate Converter Convert a monthly salary into an hourly rate and back, using the 220-hour CLT base or your own. PJ vs CLT Calculator Compare a CLT salary with a PJ contract honestly: 13th, holiday third, FGTS and the expected penalty against the DAS, the accountant and no safety net. Resume Generator Fill in a form and get a printable resume in a clean layout.

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