Radix converts a whole number between bases — binary, octal, decimal, hexadecimal, and any base from 2 to 36 — updating every field as you type. Nothing is uploaded.

Binary (2)

Octal (8)

Decimal (10)

Hex (16)

Custom base

Value in custom base

Bit view

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Works with arbitrarily large whole numbers (BigInt), so no overflow. Negative numbers are supported; fractional values are not. Digits above 9 use letters a–z (case-insensitive). Everything runs on your device.