Text to Base62 Converter
Encode plain text/ASCII to Base62 encoded data
Encode
Reset
Base62 Encoding Principle
Text → bytes → big integer
Divide by 62, record remainders
Reverse rems, prepend 0s for leading 0x00
Encode ASCII text to Base62 (0-9, A-Z, a-z). Treat bytes as big integer, divide by 62 repeatedly.
⚠
Supports all ASCII text. Leading 0 bytes encoded as 0.
What is Base62?
Base62 uses 62 alphanumeric characters, URL-safe, no special chars, good for short IDs.
Alphanumeric
0-9, A-Z, a-z only.
URL Safe
No special characters, no +/=.
No Padding
No padding characters needed.
Short IDs
Good for short URLs and IDs.
💡 Teaching Example: "Hello" → 5TP3P3v.
Applications
Short URLs
IDs
Tokens
URLs
Frequently Asked Questions
What is Base62 encoding?▼
Base62 is a binary-to-text encoding using 62 characters: 0-9, A-Z, a-z (62 total).
How to encode to Base62?▼
Treat data as big integer, repeatedly divide by 62 and record remainders, reverse result.
Base62 vs Base64?▼
Base62 uses only alphanumerics, no +/=, URL-safe, no padding.
What characters in Base62?▼
0-9 (10), A-Z (26), a-z (26), total 62 characters.
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