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Hex to Binary Converter — Both Directions, Instant

Convert between hexadecimal and binary instantly — each hex digit maps cleanly to exactly 4 binary bits, which is precisely why hex is used throughout programming as compact, readable shorthand for binary data.

How to use Hex to Binary

1. Paste your hex or binary value.
2. Read the converted result in the other base.
3. Copy the output.

Frequently asked questions

Why does each hex digit equal exactly 4 bits?

Hex is base-16, and 2⁴ = 16 — so every possible hex digit (0-F) maps to exactly one unique 4-bit binary pattern, making the conversion a simple direct lookup rather than requiring long division.

Does it handle values with a 0x or 0b prefix?

Yes — common prefixes are recognized and stripped automatically, so you can paste hex or binary values as they typically appear in code.

Can it convert large multi-byte values?

Yes — the conversion works digit-by-digit (or nibble-by-nibble) and scales to values of any length.

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