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Base32 encoder and decoder

RFC 4648, base32hex, Crockford, and z-base-32 with separate alphabets.
EncodeDecodeRFC 4648Base32hexCrockfordz-base-32ClearText inHex inInputLowercase outputRFC 4648 is uppercase by spec; lowercase renders decodable too.Pad with =RFC 4648 pads to 8-character groups; Crockford and z-base-32 never pad.

Four separate alphabets. Each with its own table and test vectors: never mixed.
Paste, drop, or type to begin. Everything stays on this device.

More encoding tools

- Base64 (/encoding/base64)
- Base58 encoder (/encoding/base58)
All encoding tools (/encoding)

Canonical HTML: https://nutter.tools/encoding/base32/
Markdown version: https://nutter.tools/encoding/base32/index.md
Plain-text version: https://nutter.tools/encoding/base32/index.txt
Agent index: https://nutter.tools/llms.txt