Turn an image into a base64 data URI you can paste straight into a stylesheet or a template, with optional resizing and format conversion. It shows the encoded length against the original, because that is the real decision: base64 adds about a third, and past a few kilobytes a normal image request is the better trade.
Runs entirely in your browser
A data URI embeds an image directly into your CSS, HTML or an email as a Base64 string, removing the need for a separate file request. This tool converts an image into a data URI you can paste straight into a stylesheet or template, with optional resizing and format conversion first.
It shows the encoded length against the original size, which is the real decision point: Base64 inflates data by roughly a third, so inlining is a win for tiny images (an icon, a small background) but a loss beyond a few kilobytes, where a normal image request is more efficient and cacheable. Seeing both sizes helps you make that call rather than guessing.
It runs in your browser, so the image is not uploaded. Use it to inline small assets, avoid an extra request for a critical icon, or embed an image in an email template where external files are unreliable.
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