Base64 Encoder/Decoder

Encode text to Base64 or decode Base64 back to text. Upload files to get their Base64 data URI. All processing happens in your browser.

Encode Decode

input Upload file

output

How it works

Paste text to encode, a Base64 string to decode, or upload a file to get its data URI.

Choose encode or decode and hit convert. Full UTF-8 support for international characters.

Copy the result to your clipboard or download it as a text file. Everything stays in your browser.

We're building more free utilities for web artisans. Get in touch with suggestions.