Base32 Decode
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Converted locally in your browser with UTF-8 safe TextEncoder and TextDecoder handling. Your text stays only on this page.
Decode Base32 text
Convert Base32 back into readable text using the RFC 4648 alphabet. Input is uppercased and surrounding whitespace is stripped, so lowercase and spaced-out codes decode correctly, and decoded bytes are interpreted as UTF-8.
When to use this tool
Use Base32 when you need a case-insensitive, human-friendly encoding free of ambiguous characters, such as TOTP/2FA secrets, backup or invite codes, DNS labels, and S3-style keys.
Privacy and limitations
This conversion runs locally in your browser. Base32 is an encoding format, not encryption, so anyone can decode the result if they have the encoded text.