Your files stay on your device

Base62 encoder and decoder

Base62 over an explicit alphabet, with duplicate characters refused.
EncodeDecodeTextHexClearInputExplicit alphabet (exactly 62 unique characters)

Duplicates are refused. A non-bijective alphabet would decode ambiguously.
0-9A-Za-za-zA-Z0-9

Base62 is not one standard: the alphabet is an explicit input here, and it ships with every result.
Paste, drop, or type to begin. Everything stays on this device.

More encoding tools

- Base58 encoder (/encoding/base58)
- Number base converter (/text/number-bases)
All encoding tools (/encoding)

Canonical HTML: https://nutter.tools/encoding/base62/
Markdown version: https://nutter.tools/encoding/base62/index.md
Plain-text version: https://nutter.tools/encoding/base62/index.txt
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