Hex to Binary Converter Online Free — Instant

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Hex to Binary — convert hexadecimal to binary

converted in your browser

⌃⏎ run · ⎋ clear · / focus input

Hexadecimal

Decimal · base 10

Hexadecimal · base 16

Binary · base 2

send result to

no matches

Octal · base 8

Enter a hexadecimal value above to convert it

Hex to Binary Online

Updated 2026-07-09

Convert hexadecimal to binary online for free. Paste a hex value — with or without a 0x prefix — and SnapTools shows its binary representation instantly, right in your browser. Nothing you enter is uploaded.

Because one hex digit is exactly four binary bits, hexadecimal is really just a compact way to write binary — which is why byte values, colours, and memory addresses are shown in hex. This converter expands any hex value back to its bits in one step, so you can read a bitmask, check a manual conversion, or learn the mapping without counting nibbles by hand. For every base at once, use the Number Base Converter.

// how to use

1 Paste or type a hexadecimal value into the input (a leading 0x and spaces are fine).
2 SnapTools converts it to binary as you type.
3 Copy the binary result, or open the Number Base Converter for all bases at once.

// examples

Byte value

Input

FF

Output

11111111

Larger value

Input

1F4

Output

111110100

// common uses

Reading a hex byte or colour value as raw bits Learning how hexadecimal maps to binary Debugging low-level data and bitmasks Checking a manual hex-to-binary conversion

// faq

No. The conversion runs entirely in your browser, so nothing you enter leaves your machine.

Replace each hex digit with its 4-bit binary group — F is 1111, A is 1010, 4 is 0100 — then concatenate. This tool does it instantly and drops any leading zeros on the whole value.

One hex digit maps to exactly four binary bits, so hexadecimal is a compact way to write binary. That is why colours, memory addresses, and byte values are usually shown in hex.

Yes. A leading 0x and separating spaces are ignored, so you can paste values straight from code, a hex dump, or a debugger.

Hexadecimal only uses the digits 0-9 and letters A-F. Any other character is flagged so you can correct it rather than getting a wrong answer.

// related

Binary to Hex Hex to Decimal Decimal to Binary Number Base Converter Text to Binary

Use this via API

Get a free API key →

curl -X POST https://snaptools.dev/api/v1/tools/hex-to-binary \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"number":"FF"}'