Is Number Base Converter free?

Yes, Number Base Converter is completely free to use with no signup required.

Does Number Base Converter send my data to a server?

No. Number Base Converter runs entirely in your browser using client-side JavaScript. Your data never leaves your device.

Convert numbers between binary, octal, decimal, and hexadecimal instantly, entirely client-side.

DevTab

Never leaves your browser

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

Binary

11111111

Octal

377

Decimal

255

Hex