embed inline
The Image to Base64 tool encodes an uploaded image into a Base64 text string, which can be pasted directly into HTML, CSS, or JSON as a data URI — embedding the image inline without a separate file request.
Embedding a small icon or logo directly in CSS or HTML without an extra file request.
Including an image inside a JSON payload or email template that can't reference external files.
Avoiding broken image links when sharing a single self-contained HTML file.
Yes, roughly by about a third, which is why it's best suited to small images like icons rather than large photos.
PNG, JPG, WEBP, GIF, and SVG images can all be converted to a Base64 data URI.
Yes — paste it into a browser address bar or an <img> tag's src to render it, or use a Base64-to-file decoder to save it back as a file.
ToolBench runs this tool entirely in your browser. Your file or text is processed on your own device using JavaScript — nothing is uploaded to a server, nothing is stored, and there's no sign-up wall between you and the result. That's true of every one of the 500+ tools on this site, from PDF utilities to unit converters.