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Binary / Hex / Decimal Converter

Binary Converter instantly converts any number between binary (base 2), hexadecimal (base 16), octal (base 8), and decimal (base 10) formats, running entirely in your browser.

No upload Instant Free No sign-up

How to convert number bases

  1. 1 Type a number into any field (decimal, binary, hexadecimal, or octal).
  2. 2 All other formats update instantly as you type.
  3. 3 Copy any result by clicking on the field and using Ctrl+A, Ctrl+C.

Frequently Asked Questions

What is the maximum number supported?
Numbers up to 2^53 − 1 (JavaScript's safe integer limit). For larger numbers, use a specialist arbitrary-precision tool.
Can I enter negative numbers?
No — this converter handles unsigned integers only. Negative numbers in two's complement require a different approach.
Is this tool accurate?
Yes — all conversions use JavaScript's parseInt and toString with the appropriate radix.

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