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Binary to Hex Converter

Convert numbers between binary, octal, decimal and hexadecimal — arbitrary size, entirely in your browser.

Processing... 0%
Validating digits
Converting between bases
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Result

This page opens the number base converter with binary (base 2) as the source and hexadecimal (base 16) as the target — paste the bits and run the conversion.

Binary and hex line up perfectly: every group of four bits is exactly one hex digit. Split 11011010 into 1101 and 1010, translate each group — 13 is d and 10 is a — and the result is da.

The complete tool converts between all four common bases in any direction and shows each result as binary, octal, decimal and hex side by side. There is no length limit, and the math runs entirely in your browser.

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Executed in Browser

Your files and inputs never leave this device. Processing runs completely offline. 100% Secure.

Accepted Formats & Rules

  • Converts between base 2, 8, 10 and 16 in any direction.
  • Validates every digit against the source base and points out the offending character.
  • Accepts lowercase or uppercase hex digits, spaces and underscore separators.

Key Benefits

✓ Handles numbers of any length thanks to BigInt arithmetic — no 32-bit or 53-bit overflow, ever.
✓ Shows the converted value together with a breakdown in all four bases at once.
✓ Runs entirely in your browser: the values you convert are never uploaded anywhere.

Use Cases

  • • Translate a binary bit mask or register value into decimal while debugging code.
  • • Turn a decimal number into hex for a color value, memory address or protocol field.
  • • Check homework answers on positional number systems with exact, unlimited-size arithmetic.