Base36 Converter
Convert numbers between decimal and Base36 — compact alphanumeric IDs using 0-9 and a-z.
Runs locally in your browser. Your input is not uploaded.
How to Use
- 1
Enter values
One number per line — decimal or Base36 depending on direction.
- 2
Pick the direction
Decimal → Base36 or Base36 → Decimal.
- 3
Copy the results
Each line shows input → output.
Frequently Asked Questions
- A numeral system using digits 0-9 and letters a-z — 36 symbols total. It is the densest case-insensitive alphanumeric encoding, popular for short IDs and license keys.
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