Binary Translator
Convert between text and binary. Free, no signup.
How It Works
Type text in the top field to see its binary representation, or paste binary (space-separated 8-bit bytes) in the bottom field to convert it back to text. Both directions update instantly, and nothing is uploaded to a server.
Binary of Common Characters
| Character | ASCII | Binary |
|---|---|---|
| A | 65 | 01000001 |
| a | 97 | 01100001 |
| 0 | 48 | 00110000 |
| space | 32 | 00100000 |
| ! | 33 | 00100001 |
What Is Binary Code?
Binary is the base-2 number system computers use, made up of only 0s and 1s. Text is stored as binary by mapping each character to a number through the ASCII or Unicode standard, then writing that number in base 2 as an 8-bit byte. Translating between text and binary makes that hidden representation visible — handy for learning, puzzles, and computer-science exercises.
Frequently Asked Questions
How do I translate text to binary?
Type or paste your text into the Text field. Each character is converted to its 8-bit binary code and shown in the Binary field, with bytes separated by spaces. Copy the result with the Copy Binary button.
How do I convert binary to text?
Paste space-separated binary bytes (groups of 8 ones and zeros) into the Binary field and the decoded text appears in the Text field instantly. Both directions update live.
What is 'Hello' in binary?
Hello in 8-bit ASCII binary is 01001000 01100101 01101100 01101100 01101111 — one byte per letter: H, e, l, l, o.
How does binary code represent letters?
Each character maps to a number via the ASCII/Unicode standard (for example A is 65), and that number is written in base 2 as an 8-bit byte. So A becomes 01000001. Text is just a sequence of these bytes.
Is my text private?
Yes. The translation runs entirely in your browser using JavaScript — nothing is uploaded to a server, so your text stays on your device.