Binary ⇄ Text Converter
Turn text into 8-bit binary or decode binary back into readable text — with proper UTF-8 handling for emoji, accents and every language.
How binary text conversion works
Every character on a computer is stored as a number. This tool spells those numbers out in binary — the 1s and 0s a computer actually reads.
Text → Binary
Each character is encoded to its UTF-8 bytes, and every byte becomes an 8-bit group of 1s and 0s, separated by spaces.
Binary → Text
Paste 8-bit binary groups back in — spaces optional — and the original text is reconstructed from the UTF-8 bytes.
Copy or download
Grab the result with one click, or download it as a text file to keep. Nothing is ever sent anywhere.
About 8-bit binary and UTF-8
A byte is 8 bits, and a bit is a single 1 or 0. Basic ASCII characters
(letters, digits, common punctuation) fit in one byte, so "A" becomes
01000001. Characters outside ASCII — accented letters, emoji, non-Latin
scripts — are encoded with UTF-8, which uses two, three or four bytes,
producing multiple 8-bit groups per character.
When decoding, this tool accepts binary with or without spaces between the bytes and simply reads the stream in 8-bit chunks. If the total number of bits isn't a multiple of 8, or the bytes don't form valid UTF-8, you'll get a clear message instead of garbled text.
Private by design. Every conversion happens right here in your browser using built-in JavaScript. Your text is never uploaded, logged or stored — we never see it.