Hexadecimal to Base36 Converter

Summary

Paste or type a hexadecimal number and instantly see the equivalent base-36 representation.

How it works

1. Enter one or more hexadecimal numbers in the input field (one per line for batch mode).
2. The tool parses each value as a base-16 integer using JavaScript BigInt.
3. It then repeatedly divides by 36 and maps each remainder to the base-36 digit set (0–9, A–Z).
4. The resulting base-36 string is displayed alongside the original hex and decimal values.
5. Click "Copy Results" to copy the output to your clipboard.

Use cases

• Encode large numeric IDs (like UUID integers) into shorter, URL-safe base-36 strings.
• Reverse-engineer or validate base-36 encoded values found in URLs or databases.
• Convert color hex codes to base-36 for compact storage experiments.
• Academic or coding exercises on positional number systems.
• Verify hand-calculated base conversions quickly.
• Batch-convert a list of hex hashes or identifiers to base-36 in one operation.

Frequently Asked Questions