Text to Binary Converter
Convert text to binary, or binary back to text, with proper UTF-8 handling.
How to Convert Text to Binary
- Choose "Text → Binary" or "Binary → Text" with the tabs.
- Type or paste your input.
- The result updates instantly below.
- Copy the result with the "Copy Result" button.
Frequently Asked Questions
Why is each group of binary digits 8 characters long?
Text is converted to its UTF-8 byte representation first, and a byte is always exactly 8 bits, so each binary group represents one byte — padded with leading zeros when the number itself is shorter than 8 bits.
Does this handle accented letters, symbols, and emoji correctly?
Yes — it uses proper UTF-8 encoding rather than a simplistic one-character-per-byte approach, so characters like é or emoji (which take up more than one byte in UTF-8) convert to multiple 8-bit groups and decode back to the exact original text, not garbled output.
Why doesn't binary-to-text conversion work on any random string of 0s and 1s?
The binary needs to represent valid UTF-8 byte sequences — an arbitrary bit pattern (like a random binary string not derived from real text) may not decode into any consistent characters, so the tool expects binary that was actually produced from encoding text, typically pasted from this same tool or a compatible one.
Is my data sent anywhere?
No — all conversion happens entirely in your browser using JavaScript, so nothing you type is ever sent to a server.