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Base Converter

DevOffline-ready

Base Converter translates integers between decimal (base 10), hexadecimal (base 16), binary (base 2), and octal (base 8) with all representations updating simultaneously as you type in any field. Essential for working with memory addresses, Unix file permissions, bitwise operations, colour codes, and low-level hardware registers. Input accepts standard prefixes (0x for hex, 0b for binary) and ignores spaces between digit groups.

Related: Unit ConverterText → HexByte Converter

How to use the Number Base Converter

  1. Type a number into any field — decimal, hex, binary, or octal — and all other bases update instantly.
  2. For hexadecimal input, use standard digits 0–9 and letters A–F (case-insensitive).
  3. For binary input, use only 0 and 1. Spaces between groups of 4 bits are ignored.
  4. Click Copy next to any field to copy that representation to the clipboard.

Number base conversion

Converts integers between decimal (base 10), hexadecimal (base 16), binary (base 2), and octal (base 8).