Number Base Converter

It converts numbers between different numeral systems: binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16).

Enter a number, select its current base, and see instant conversions to all other bases. You can also type in any field to convert from that base.

Yes, completely free with no registration.

All computation happens in your browser. Nothing is sent to any server.

Yes, the tool supports negative numbers. For binary, it shows two's complement representation.