Number Base Converter

Convert numbers between binary, octal, decimal, and hexadecimal.

Input Number

Input Base

Binary (2)11111111

Octal (8)377

Decimal (10)255

Hexadecimal (16)FF

About Number Base Converter

This is a free, fast, and fully client-side number base converter tool. All processing is done locally within your browser to ensure maximum privacy and security. No data is sent to our servers. Bookmark this page for quick access to ad-free, high-performance SEO and developer utilities.