Base64 Encode / Decode
Encode text to Base64 or decode it back, entirely in your browser.
Result
This runs entirely in your browser. Your text is never sent to a server — check your browser's network tab if you don't believe us.
How to use this tool
Base64 Encode/Decode converts text to Base64 or decodes Base64 back into plain text.
- Choose Encode or Decode.
- Paste your text or Base64 string.
- The result appears immediately below — copy it out.
Related reading: How to check that a "privacy-first" tool is actually private