Text ↔ Binary ↔ Hex Converter

Each character is converted to its ASCII (or Unicode) code point, then that number is expressed as an 8-bit binary string. For example, 'H' is ASCII 72, which is 01001000 in binary.

Hexadecimal (base 16) uses digits 0-9 and letters A-F. It's more compact than binary — each hex digit represents exactly 4 bits, so a byte is two hex digits (e.g., 0xFF). Hex is common in color codes, memory addresses, and cryptographic hashes.

Select 'Binary → Text' mode, paste binary digits (spaces are ignored), and the converter groups them into 8-bit chunks and converts each to its ASCII character.

The converter uses ASCII code points (charCodeAt / fromCharCode), which handles standard ASCII characters (0-127) correctly. For non-ASCII Unicode characters, the binary representation will use the character's Unicode code point.