Online Image to Base64 Tool
Convert images to Data URL or pure base64, with preview, copy and download, fully client-side for privacy
FAQ
Base64 encodes binary data using 64 printable characters. It is commonly used to embed images in HTML, CSS or JSON, avoiding extra network requests.
A Data URL includes the data:image/png;base64, prefix and works directly in an img src. Pure base64 only contains the encoded content; you add the prefix yourself.
Every format the browser can read, including JPG, PNG, WebP, GIF and SVG.
No. The conversion happens entirely in your browser. Your image never leaves your device.
Base64 expands data by about 33%. For large images, compress or resize first so the embedded string stays shorter.
Completely free. This is a pure frontend online tool - no registration required, no payment needed, just open and use.
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