Text ↔ ASCII Binary

How to use this text-to-binary converter

  1. Type text in the top box to see its binary representation below.
  2. Or paste 8-bit binary groups in the bottom box to decode back to text.
  3. Both directions update live as you type.

How does text become binary?

Each character has a numeric ASCII code (A = 65, for example), which this tool converts to an 8-bit binary number. This is fundamentally how computers represent all text internally, just at a much larger scale with Unicode today.

Does this work with special characters and emojis?

This tool uses standard 8-bit ASCII, which covers basic Latin letters, numbers and symbols. Emojis and accented characters need multiple bytes (UTF-8) and aren't supported here.

Why exactly 8 bits per character?

8 bits (1 byte) can represent 256 distinct values, which is enough for the full ASCII character set (128 standard characters) with room to spare.