Encoding a short string
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JBSWY3DPEE======
Base32 Encoder / Decoder
Encode text to RFC 4648 Base32 or decode it back, the format behind TOTP secrets.
Output
The result will appear here.
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About this tool
Base32 encodes binary data into a 32-character alphabet (A–Z, 2–7), trading some of Base64's density for an alphabet that's case-insensitive and safe to read aloud — which is why TOTP two-factor secrets, and some DNS and filesystem-name encodings, use it instead of Base64.
How to use it
- Type or paste text and it's encoded to Base32 immediately.
- Switch to Decode and paste a Base32 string to get the original text back.
- Switching modes copies the current output into the input, so you can verify the round trip.
Examples
Common problems
- Decoding fails with an invalid character error.
- Base32 only uses A–Z and 2–7 — it excludes 0, 1, 8 and 9 to avoid confusion with O, I, B and G. Check for a stray character, especially if you copied the value from a QR code image.