Convert an image to a Base64 Data URI with ready-to-paste HTML and CSS snippets — no upload involved.
A Data URI embeds a file directly inside text: data:image/png;base64, followed by the file's bytes encoded in Base64. Paste it into an tag, a CSS background or a JSON payload and the image renders with no separate file and no extra HTTP request — the image travels inside the document itself.
That is genuinely useful for small images: icons in a single-file HTML page, logos in transactional e-mails, tiny placeholders inlined into CSS, fixtures in automated tests. It is the wrong tool for large images — Base64 output is about 33% larger than the original file and cannot be cached separately from the document. As a rule of thumb, inline images under a few kilobytes and serve everything else as normal files.
The conversion here happens with the FileReader API, entirely on your device: the image is read into memory, encoded and shown — no upload, no server, no storage. The size estimate next to the result shows exactly what the 33% overhead means for your file before you commit to inlining it.
Data URI format: data:{mime-type};base64,{base64-bytes}. Encoded size ≈ original size × 4/3 (plus ~2% if line breaks are kept).
No. The file is read with the FileReader API in your browser and never leaves your device.
For small images (up to a few KB) where saving an HTTP request or shipping a single self-contained file matters: e-mail signatures, single-file pages, test fixtures.
Base64 represents every 3 bytes with 4 text characters, adding about 33%. That is the price of traveling as plain text.
PNG, JPG, WebP, GIF and SVG. The Data URI keeps the original format and MIME type — nothing is re-encoded.
Vai.la turns any URL into a short link with click statistics, QR Code and your own biolink.
Vai.la is not responsible for how the tools are used or for decisions made based on their results.