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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.

Result

Add your input or load an example, then run the tool. Your result will appear here.

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

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

Format references

Tool page updated: