Number Base Converter
Type a number in any base to instantly see it converted to decimal, binary, hexadecimal and octal.
Pourquoi utiliser cet outil ?
Converting between number bases by hand is error-prone, especially for binary and hex. This tool converts a number to decimal, binary, hexadecimal and octal all at once, live, directly in your browser.
Why it's free
A discreet ad banner covers hosting costs — that's the whole business model. No account to create, no usage limit, no paid tier unlocking the real result. Calculations run in your browser, so your numbers, dates and text never leave your device.
How our tools work