Convert between binary code and readable text — both directions
Binary is the fundamental language of computers — every piece of data, from text to images to programs, is ultimately stored as sequences of 0s and 1s. Each character in text is represented by a specific binary pattern according to encoding standards like ASCII or UTF-8. For example, the letter 'A' is 01000001 in binary (65 in decimal). Understanding binary representation is essential for computer science students, developers working on low-level systems, and anyone curious about how digital information works. This bidirectional converter handles both directions: text to binary encoding and binary to text decoding. It uses UTF-8 encoding, supporting all characters including emoji, accented letters, and CJK characters.
A byte is 8 bits, which can represent 256 different values (2^8). This is enough for all ASCII characters (128 values) with room to spare. Early computers used various byte sizes, but 8 bits became the standard by the 1970s.
ASCII uses 7 bits to encode 128 characters (English letters, numbers, symbols). UTF-8 is backward-compatible with ASCII but uses 1-4 bytes to encode over 1 million characters including all world languages, emoji, and special symbols.
Yes — this tool uses UTF-8 encoding, so it handles all languages including Chinese, Arabic, Japanese, emoji, and accented characters. Non-ASCII characters will produce multi-byte binary sequences.
Each position represents a power of 2 from right to left: 1, 2, 4, 8, 16, 32, 64, 128. Add the values where there's a 1. For example, 01001000 = 64+8 = 72 = 'H' in ASCII.
Common uses include: debugging network protocols, understanding file encodings, CTF (Capture The Flag) security challenges, computer science education, creating binary art/puzzles, and analyzing binary data in hex editors.