Number Base Converter

How to use this tool

1. 1

   Type in any base

   Click any of the four fields — Binary, Octal, Decimal, or Hexadecimal — and type or paste your number. All other fields update in real time.

2. 2

   Choose a bit width

   Select 8, 16, 32, or 64-bit to match the data type you are working with. Values are masked to that width, matching how typed variables behave in C, Rust, TypeScript, and similar languages.

3. 3

   Copy the result

   Click the Copy button on any field to copy its value to your clipboard. Binary output is copied without spaces for use in code.