Base32 Encoder / Decoder

Encode UTF-8 text as RFC 4648 Base32 or decode Base32 to text.

Convert in your browser · No sign-up

Accepts padded or unpadded input and checks unused bits. Invalid UTF-8 is rejected. This is encoding, not encryption.

Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.

How to use

  1. Encode UTF-8 text as RFC 4648 Base32 or decode Base32 to text.
  2. Choose the mode or options, then run the tool.
  3. Review the result, then copy or download the TXT file.

Example

foo → MZXW6===

Details and limitations

Accepts padded or unpadded input and checks unused bits. Invalid UTF-8 is rejected. This is encoding, not encryption.

Text stays in your browser; it is not sent to a conversion server.

FAQ

Base32 Encoder / Decoder — What are the supported inputs and limits?

Accepts padded or unpadded input and checks unused bits. Invalid UTF-8 is rejected. This is encoding, not encryption.

Format references

Tool page updated: