Text to Binary Converter
Convert text to binary code and binary back to text instantly. Supports ASCII and Unicode characters. Also converts to hexadecimal, octal, and decimal. Free, private — everything runs in your browser.
How Text to Binary Conversion Works
Every character in text has a numeric code. In ASCII, the letter 'A' is 65, which in binary is 01000001. This text to binary converter takes each character's code point and converts it to its binary representation. Each character becomes an 8-bit binary number (or more for Unicode characters beyond ASCII).
Conversion Examples
A → ASCII 65 → Binary: 01000001
Hello → 01001000 01100101 01101100 01101100 01101111
01001000 01101001 → Hi
Understanding Binary Code
Binary is a base-2 number system using only 0 and 1. Computers store all data — text, images, video — as binary. Each binary digit (bit) represents a power of 2. Eight bits make a byte, which can represent 256 different values (0-255), enough for all ASCII characters.
Text to Binary for Developers
Developers frequently need to inspect binary representations for debugging network protocols, file formats, encryption, and data encoding. This converter supports multiple output formats — binary, hexadecimal (base-16), octal (base-8), and decimal — making it useful for various programming and debugging scenarios.
ASCII vs Unicode
ASCII uses 7 bits to represent 128 characters (0-127), covering English letters, digits, and common symbols. Unicode extends this to support over 143,000 characters from all writing systems. UTF-8, the most common encoding, uses 1-4 bytes per character and is backwards compatible with ASCII.