How to Convert Between Number Bases (Binary, Decimal, Hex)
Working with colors, bitmasks, memory addresses, or CS homework often means switching between binary, decimal, and hexadecimal. Kitolity converts a number between bases instantly in your browser.
The tool
Number Base Converter
Step by step
- Open the Base ConverterGo to the Number Base Converter in your browser.
- Enter a numberType your value and select its current base.
- Read the conversionsSee the equivalent binary, decimal, hex, and octal at once.
Why different bases exist
Computers work in binary (base 2); hexadecimal (base 16) is a compact way to write binary (one hex digit = four bits), which is why colors (#FF8800) and memory addresses use it. Decimal (base 10) is for humans. Converting between them is a constant in low-level and web work.
Is it private?
Yes — the conversion runs entirely in your browser; nothing is sent anywhere.
Frequently asked questions
Which bases are supported?
Binary, decimal, hexadecimal, and octal.
Is it free?
Yes, completely free with no sign-up.
Does it work offline in the browser?
The conversion itself is computed locally in your browser.