Real-time linked conversion between binary, octal, decimal and hexadecimal: type a number into any input field and the other bases update automatically. All computation happens locally in your browser — your input is never uploaded to any server.
Notes:
- Live linking: type in any base field and the other three convert automatically
- Integers of any length are supported (BigInt arithmetic), including negative numbers
- Paste with prefixes: hexadecimal
0x, binary0b, octal0o(plain input without prefix also works) - Every field has one-click copy
- Invalid input (e.g. a
2in binary) shows an explicit reason