Base64 Encoder / Decoder
Encode text to Base64 or decode a Base64 string back to plain text. Switch to File mode to convert any file to a Base64 data URL, useful for embedding images in CSS or HTML. Everything runs in your browser.
Image, PDF, font, or any binary file
To use in HTML/CSS, prefix with the data URL header: data:image/png;base64,…
All encoding and decoding happens entirely in your browser. No text or files are sent to any server.