Encodeurs Base64 & Outils Multimédia

Yes — encoding, decoding, and the image/audio conversions all run in your browser. Your text and Base64 strings never leave your device.

A data URI embeds the file content directly in a URL string. Converting an image to a Base64 data URI lets you inline it in HTML, CSS or JSON without a separate file request.

It may encode binary data (an image or audio file) rather than text. Try the Base64-to-image or Base64-to-audio tools instead.

Very large Base64 strings can slow down the browser, but there is no fixed upload limit since nothing is sent to a server.