Convert numbers between binary, octal, decimal, hex. Number Base Converter is a free online tool from the ToolsRift Hash & Crypto Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
Enter a value in any base field and the binary, octal, decimal and hex equivalents update live. Copy whichever representation you need.
Binary (base 2), octal (base 8), decimal (base 10) and hexadecimal (base 16), all converted at once.
Yes — type into the hex field and the decimal, octal and binary values update automatically.
It converts standard integer values; very large numbers may exceed JavaScript's safe integer range and lose precision.