TRUTHY TOOLS

Base32 Encoder & Decoder

Encode plain text to Base32 or decode Base32 back to readable text.

0 chars
Base32 0 chars
Ready

About this tool

Base32 helps developers, API testers, support engineers, and integration teams encode UTF-8 text to RFC 4648 Base32 or decode Base32 strings back to readable text. Use it for DNS-safe identifiers, otpauth secrets, Crockford-adjacent debugging notes, and systems that prefer uppercase alphanumeric encodings.

Use cases

  • Encode a short text fixture as padded or unpadded Base32 for API documentation, tests, or support tickets.
  • Decode a Base32 value from a log line, integration payload, authenticator setup note, or troubleshooting transcript.
  • Validate Base32 strings and catch invalid characters, bad padding placement, or impossible encoded lengths before pasting them into another system.
  • Copy transformed output quickly without installing a command-line encoder.

FAQ

What is Base32 best used for?

Base32 is best used when you need a reversible text encoding that uses uppercase letters A-Z and digits 2-7, often for systems that avoid punctuation or case-sensitive values.

Can Base32 omit padding?

Yes. This tool can include RFC 4648 equals-sign padding or omit it when the receiving system expects unpadded Base32.

What validation errors does the Base32 decoder show?

The decoder reports characters outside A-Z and 2-7, padding that appears before the end, too much padding, padded lengths that are not multiples of eight, and impossible unpadded lengths.

Is Base32 encryption?

No. Base32 is reversible encoding, not encryption or hashing. Do not treat it as a way to protect secrets.