Base32 decoder
Paste a Base32 string to see the original text, or the raw bytes when it is not text.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter encoded text.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Each character A to Z and 2 to 7 gives a value from 0 to 31 (5 bits). The bits are regrouped into 8-bit bytes, which are read as UTF-8 text.
Example
Result: Decoded text: foobar; Bytes: 6.
MZXW6YTBOI======
foobar
Limits and caveats
- base32hex and Crockford alphabets are not supported and would decode differently.
- Bytes that are not UTF-8 text are shown in hex only.
Questions about this tool
Does letter case matter?
No. Lowercase is converted to uppercase before decoding and spaces are ignored.
What if the = padding is missing?
Unpadded input is fine as long as its length is possible in Base32, meaning the remainder after dividing by 8 is not 1, 3 or 6.
Why does it say the bytes are not text?
The encoded data may be a key or a binary file, so the hex values are shown instead of garbled text.