Convert between binary, octal, decimal, hex and any base from 2 to 36 in real time. Powered by BigInt for unlimited digits, with a clickable bit grid to edit values directly.
Yes. You can pick both the input base and an arbitrary output base from 2 to 36. Digits above 9 are written as A(10) to Z(35).
It uses JavaScript BigInt, so integers of any length are converted exactly with no floating-point error.
Pick an 8/16/32/64-bit width, then click any bit to toggle it between 0 and 1. Every base value updates instantly. Editing is based on the unsigned value.
No. Every calculation happens entirely inside your browser, and no value is ever sent to or stored on a server.