Text to Binary Converter
Free online text to binary converter. Turn any text into 8-bit binary (UTF-8) instantly — great for learning how computers store characters. Runs 100% in your browser.
How does text become binary?
Every character is stored as one or more bytes under a character encoding — the web standard is UTF-8. The letter 'H' is byte 72, which in binary is 01001000. This tool encodes your text as UTF-8 and prints each byte as an 8-bit group.
ASCII characters (English letters, digits, punctuation) take one byte each; accented letters typically take two; emoji take four — which is why one emoji becomes four binary groups.
How to use
- 01Type or paste your text into the input box.
- 02Click Convert to binary.
- 03Each character is shown as an 8-bit UTF-8 binary group.
- 04Copy or download the binary output.
Frequently asked questions
- Why is each character 8 bits?
- Text is first encoded as UTF-8 bytes, and each byte is 8 bits. ASCII characters use one byte; accented characters and emoji use two to four bytes.
- Why does one emoji produce several binary groups?
- Emoji are encoded as multiple UTF-8 bytes (usually four), so a single emoji becomes four 8-bit groups.
- Is my text uploaded?
- No. The conversion uses the browser's built-in TextEncoder and runs completely offline.