Number Base Converter
Convert numbers between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) instantly.
Binary (Base 2)0b
—Octal (Base 8)0o
—Decimal (Base 10)
—Hexadecimal (Base 16)0x
—Frequently Asked Questions
Is the Number Base Converter free?
Yes — the Number Base Converter is completely free to use with no account or sign-up required.
Is my data private?
Absolutely. This tool runs entirely in your browser. Your text and data are never sent to any server.
Does it work on mobile?
Yes, all tools are designed to be mobile-friendly and responsive.