Number Base Converter
Type in any base — the other three update instantly.
What is this tool?
Positional number systems use different radices. Developers often switch between binary, octal, decimal, and hex when debugging bitmasks, colors, or machine values. This converter keeps all four in sync with per-base validation.
How to use it
- Edit any field — binary, octal, decimal, or hex.
- Invalid characters for that base are flagged immediately.
- Copy the representation you need.