Text to Binary
Convert text into binary code (and back). Runs in your browser, nothing uploaded.
Every character a computer stores is really a number, and that number can be written in binary — a string of 0s and 1s. Text to Binary converts your text into its binary representation (and back), a fun and educational way to see how text is encoded.
How to use text to binary
- 1. Paste your text.
- 2. It's converted to binary, one byte per character.
- 3. Copy the binary output.
When to use Text to Binary
Learn how text is stored
See the binary behind each character to understand character encoding.
Puzzles and codes
Create a binary-coded message for a game or challenge.
Teaching
Demonstrate the link between characters and their binary values.
Why some letters give two groups
Text is converted with UTF-8, the encoding used by almost every web page. "A" is a single byte, 01000001. "ă" needs two: 11000100 10000011. The emoji 😀 needs four. So a Romanian word with diacritics produces more 8-bit groups than it has letters — that's correct, not an error, and it's exactly how the text is stored on disk. Every group is padded to eight digits with leading zeros.
Frequently asked questions
Can I convert binary back to text?
Yes — use Binary to Text, or this tool's decode direction, to turn 0s and 1s back into characters.
How is each character encoded?
As UTF-8 bytes, eight bits each. English letters, digits and punctuation take one byte; letters such as ă or é take two; most emoji take four.
Is my text uploaded?
No — conversion runs in your browser.