Base64 encode / decode

Base64 encode & decode — free

Encode text or any file to Base64 and data URIs, or decode Base64 back to text — and download binary content as a real file. UTF-8 safe, with a URL-safe option. All on your device, nothing uploaded.

Base64text and files, encoded and decoded in your browser

Mode

Output format

Data URIURL-safe

Sourcetype text, or drop a file anywhere on this tool

Text input

Type or paste text to begin — or drop any file onto this tool to encode its bytes. Tick Data URI to get a ready-to-paste data:…;base64,… string.

Base64 output

Encoded & decoded on your device — nothing is uploaded.