Image to Base64 Converter

No. Both encoding and decoding happen entirely in your browser and are never sent to or stored on a server.

A Data URI includes a format prefix like "data:image/png;base64,..." so you can paste it directly into an HTML img src or CSS. The raw Base64 string is just the encoded text, which is handy for API request bodies or other places that need the value on its own.

Decoding can fail if the string is truncated or has stray spaces or line breaks mixed in. You don't need the data: prefix — if you paste a raw Base64 string, it's treated as PNG by default and decoded automatically.

Any image format your browser can read — PNG, JPEG, WebP, GIF, and more — works for both encoding and decoding without restriction.

Larger images produce longer Base64 strings, so there's more text to handle. The conversion itself uses the browser's built-in APIs, so typical photo sizes convert almost instantly.