✓ Runs locally in your browser

Number Base Converter

Convert integers across binary, octal, decimal, hexadecimal and custom bases.

Loading the local tool workspace…
About this tool

What is Number Base Converter?

Number Base Converter translates whole numbers between bases 2 through 36 without losing integer precision.

Three simple steps

How to use Number Base Converter

  1. 01

    Enter the number and its current base.

  2. 02

    Choose the target base, such as binary, decimal or hexadecimal.

  3. 03

    Copy the converted uppercase value.

Common questions

Number Base Converter FAQ

Can it convert very large integers?

Yes. It uses browser BigInt arithmetic, so conversion is not limited by ordinary floating-point precision.

Is Number Base Converter private to use?

Yes. The web data is generated or inspected locally in your browser and is not sent to Toolnera.