Binary to Hex Converter — Base-2 to Hexadecimal Online

What is Binary to Hex?

Binary-to-hex is the compact-serialization inverse of hex-to-binary: 8 bits collapse to 2 hex characters. Nothing depends on text encoding — the transformation is exact. The tool strips all non-0/1 characters before parsing, so multi-line inputs, comma-separated bit groups, and continuous bit streams all decode identically. For inputs whose length isn't a multiple of 8, the tool left-pads with zeros; this matches the way you'd think about 'a number' being a multi-bit value, and is what programmers actually want 99% of the time. If strict validation matters for your use case, verify the length before pasting.

How to convert binary to hex online

1. 1Paste binary — any format with 0s and 1s. Separators are ignored.
2. 2The tool left-pads to a multiple of 8 bits and groups them into bytes.
3. 3Pick uppercase / lowercase and optional '0x' prefix.
4. 4Copy the resulting hex.

Use Cases

Tips & Best Practices

• ▸Both this tool and Hex to Binary are byte-level, not integer-level. For integer number-base conversion, use the Number Base Converter.
• ▸The '0x' prefix option produces valid C / Python / Rust literals — convenient for pasting straight into code.
• ▸Lowercase hex is the modern convention (matches Python .hex() and Node buffer.toString('hex')); uppercase is common in older tooling and some crypto specs (X.509).