SO SimonOS
Converters Live tool

Number Base Converter

Convert integers between binary, octal, decimal, hexadecimal, and other bases up to base 36.

Tool Flow

01 Input 02 Process 03 Output

Tool Guide

About the Number Base Converter

Use the Number Base Converter to convert integers between binary, octal, decimal, hexadecimal, and any base from 2 to 36. It supports large integer values through BigInt-safe parsing and displays clean prefixed output for common bases.

Common uses

  • Convert hex values from logs or code into decimal.
  • Check binary output for flags, masks, and examples.
  • Translate decimal IDs into base 36 or hexadecimal forms.
  • Validate whether digits are legal for a source base.

Browser workflow

  1. 01 Enter the number and choose the source base.
  2. 02 Choose the target base.
  3. 03 Copy the converted output or decimal reference value.