Base32 Encode / Decode
Encode text to Base32 or decode a Base32 string back to text.
Worth Knowing
Base32 encodes binary data using just 32 characters — uppercase letters and the digits 2–7 — deliberately avoiding easily-confused pairs like 0/O and 1/l/I. That makes it more error-resistant for humans to read aloud or type than Base64, at the cost of being about 20% larger. Its most common real-world appearance is in two-factor authentication: the secret keys behind authenticator-app QR codes are Base32, chosen precisely because they occasionally need to be entered by hand.
How to Use
- Choose your mode into the Base32 Encode / Decode above.
- Set any additional options: Text.
- The output updates instantly and is ready to copy.