Number & Base Conversion Tools
Free online number tools — convert between binary, octal, decimal and hexadecimal, run bitwise operations, translate Roman numerals, and convert IP addresses to integers.
4 tools · free · no sign-up
Number Base Converter
Convert between binary, octal, hex & decimal
Binary Operations
AND, OR, XOR, NOT & bit shifts on numbers
Roman Numerals
Convert between Roman and decimal numbers
IP Address Converter
Convert IPs between decimal, hex, binary & octal