Encoding & Number Bases
Base32 Converter
Encode text to RFC 4648 Base32 and decode Base32 back to text.
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What is Base32?
Base32 (RFC 4648) encodes bytes using only uppercase letters and digits 2–7, avoiding look-alike characters. It is common in TOTP secrets, rclone, and other contexts where humans read the string.
How it works
The UTF-8 bytes are packed into 5-bit groups and mapped to the Base32 alphabet; padding (=) aligns the output to multiples of 8. Decoding reverses the bit packing.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Realistic sample
Type or paste any realistic input — the tool computes the result locally and instantly.
Common mistakes
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