Text to Binary Converter

Encode any message into 8-bit UTF-8 binary. Example: Hi → 01001000 01101001. A → 01000001.

Text Binary
A01000001
Hi01001000 01101001
Hello01001000 01100101 01101100 01101100 01101111
OK01001111 01001011
Love01001100 01101111 01110110 01100101

How to convert text to binary by hand

  1. Find each character ASCII code (H = 72).
  2. Convert the number to 8-bit binary (72 → 01001000).
  3. Join bytes with spaces.

FAQ

How do I convert text to binary online?

Type or paste text. Each UTF-8 byte is shown as an 8-bit string you can copy.

What is Hello in binary?

01001000 01100101 01101100 01101100 01101111.

Is this text to binary tool free?

Yes — no account, no daily limits, conversion stays on your device.

Related: Binary to Text, Complete Guide.

Full interactive tool loads with JavaScript. Canonical page.