Encode text as RFC 4648 Base32 or decode a Base32 string back to UTF-8 text.
Mode
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Bytes
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Padding
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Enter the example value or paste your own input, choose the mode when one is available, and read the first result card for the direct answer. The output area gives a copyable block for code reviews, documentation, API tests, classwork or troubleshooting notes.
What the result means
Base32 is common in one-time password secrets and systems that avoid ambiguous characters.
What is not included
Only the standard RFC 4648 alphabet is supported. Crockford Base32 is handled by the ULID page.
Privacy note
The calculation runs in your browser. Avoid pasting production secrets, credentials, private keys, customer data or regulated personal data unless your own policy allows browser-based tools.