How to convert Base32, Base58, Base62 and more
- Choose Encode or Decode, then pick the format from the list.
- Type or paste text, or open any file to encode it.
- Copy the result or download it. Use "Switch to decode" to go the other way.
Looking for Base64? Use the Base64 Encoder and Decoder. Paste Base64 there; the formats on this page cover everything else.
Supported conversions
Each format works in both directions, for text and for files:
- Text to Base32
- Base32 to text
- Text to Base32 Hex
- Base32 Hex to text
- Text to Base32 Crockford
- Base32 Crockford to text
- Text to Base36
- Base36 to text
- Text to Base45
- Base45 to text
- Text to Base58
- Base58 to text
- Text to Base62
- Base62 to text
- Text to Base85 (Ascii85)
- Base85 (Ascii85) to text
- Text to Hex
- Hex to text
Questions
Is my data uploaded?
No. Every encoding is plain JavaScript that runs in your browser. Text and files stay on your device.
What is the difference between Base32 and Base32 Crockford?
RFC 4648 Base32 uses A to Z and 2 to 7 and pads with =. Crockford Base32 drops the letters I, L, O and U so values are easy to read aloud and type, treats lower and upper case alike, and has no padding.
Why are Base58, Base62 and Base36 limited to 64 KB?
These formats turn the whole input into one very large number, which gets slow for big files. Base32, Base45, Base85 and hex work in small blocks and handle larger files.
Which format is smallest?
Base85 adds about 25 percent to the size, Base62 and Base58 about 35 to 37 percent, Base32 60 percent, and hex 100 percent. Base64, which adds 33 percent, has its own tool.
What does it do with binary data when decoding?
If the decoded bytes are not valid UTF-8 text, the tool offers them as a file download or as hex instead of showing garbled characters.
Credits
Built by OneTooling using standard browser features. No third-party code runs on your data.