Runs locally
Base32
Encode and decode Base32 text.
Ctrl+Enter runs. Ctrl+Shift+Backspace clears.
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Encode and decode Base32 text. Runs in the browser. Nothing is uploaded.
About this tool
Encode text with the Base32 alphabet used by TOTP secrets and case-insensitive systems, or decode a Base32 string back into text.
How to use it
- 01
Paste the text or the Base32 string.
- 02
Choose encode or decode.
- 03
Copy the result.
FAQ
Frequently asked questions
Which alphabet is used?
The standard RFC 4648 alphabet: the letters A–Z and the digits 2–7, with = padding.
How is Base32 different from Base64?
Base32 avoids lowercase and look-alike characters, so it survives case changes, but the output is longer.