DevToolsKit
Tools

Number Base Converter

Binary, octal, decimal, hex and any radix.

  • Binary101010
  • Octal52
  • Decimal42
  • Hexadecimal2a

Custom radix (2–36)

16

Conversions use BigInt, so values can be arbitrarily large — no 53-bit limit like Number.

About this tool

Convert integers between binary, octal, decimal and hexadecimal, or any radix from 2 to 36, with BigInt support for arbitrarily large values — entirely client-side.

It runs completely in your browser — no input is sent anywhere, so it is safe to use with data you would not paste into a hosted service.

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