🔢 Base Converter

Convert between 2 / 8 / 10 / 16 (extendable to 2-36) with BigInt support for numbers far beyond 53-bit precision. Handy for debugging and teaching: no upload.

❓ Frequently asked questions

How large can it handle?

Uses BigInt, limited only by browser memory - well beyond the 53-bit cap of normal numbers.

Letter case?

Output uses lowercase (a-f). Input is case-insensitive.

Why base 36?

Base 36 uses 0-9 plus a-z, ideal for compact short codes/IDs.

📚 How to use

Base conversion is common in debugging and encoding.

Steps

  1. Pick the from/to bases.
  2. Enter the number.
  3. Click "Convert".