Binary ↔ Text Converter
Convert text to binary and binary back to text instantly. UTF-8 safe, with space-separated 8-bit bytes. Two-way and fully client-side.
Runs in your browser — nothing uploaded
Text
Binary
01001000 01100101 01101100 01101100 01101111
Convert text to binary and binary back to text in both directions. Type a message to see its 8-bit binary, or paste binary to decode it back to readable text. It's UTF-8 safe, so emoji and accented characters round-trip cleanly.
Private by design — your data never leaves your device
How to use it
No account, no upload — it all happens on your device.
1
Choose Text → Binary or Binary → Text.
2
Type or paste into the box — the result updates live.
3
Switch direction at any time; the current result carries over.
4
Click Copy to copy the result.
How characters become bits
A byte is eight bits; UTF-8 maps characters to one or more bytes.
| Character | Binary (UTF-8) |
|---|---|
| A | 01000001 |
| a | 01100001 |
| 0 | 00110000 |
| space | 00100000 |
| Hi | 01001000 01101001 |
Good to know
- One byte = 8 bits. Basic English letters, digits, and punctuation each take a single byte.
- Unicode takes more. Characters like é or 😀 span two to four bytes, so they show up as multiple 8-bit groups.
- It's reversible. Encode then decode and you get exactly the original text back — no data is lost.
Frequently asked
How is text turned into binary?
Each character is encoded to its UTF-8 bytes, and every byte is written as 8 bits (zeros and ones). Plain English letters map to one byte each; emoji and accented characters use multiple bytes, so they produce several groups.
What format should I paste binary in?
Use 8-bit groups separated by spaces, like 01001000 01101001. The decoder is lenient about extra spaces but every group must contain only zeros and ones.
Is my text sent anywhere?
No. Encoding and decoding happen entirely in your browser. Nothing you type is uploaded or stored.