Base32 Decoder

Base32 text decoded to plain text.

Runs in your browser. Nothing is uploaded — your input is processed on this device and discarded when you close the tab.

Base32 Decoder

How to use this tool

  1. Enter your values in the fields above.
  2. Press Generate to see the result.
  3. Use Load sample to try the worked example, Copy result to copy it, or Clear to start again.

Worked example

NBSWY3DP decodes to “hello”: the eight Base32 symbols expand to 40 bits, which regroup into the five bytes for h, e, l, l and o.

What this tool does not do / Limits

This decodes RFC 4648 Base32 text only. It does not decrypt anything, handle other encodings, or recover text from corrupted input.

Frequently asked questions

Is Base32 encryption?

No. It is an encoding: anyone can decode it, so it hides nothing and must not be used to protect secrets.

Do I need the = padding?

No. This tool accepts input with or without trailing = padding.

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