Text to Binary Converter
Convert text to binary
What Is This Tool?
The Text to Binary Converter turns any text into its binary representation, one 8-bit group per byte, entirely in your browser. It uses TextEncoder to get the UTF-8 bytes of your input, so Unicode characters like emoji or accented letters convert correctly (though a single Unicode character may expand into multiple 8-bit groups).
How to Use
Type or paste text into the Text field.
Click Convert to produce space-separated 8-bit binary groups.
Copy the result or download it as a .txt file.
Use Example to see a quick sample conversion.
Features
- UTF-8 byte-accurate binary conversion
- Space-separated 8-bit groups for readability
- Copy and download the result
- Handles emoji and non-Latin text correctly
- 100% client-side — nothing leaves your browser
Examples
Text: Hi
Binary: 01001000 01101001
Common Use Cases
- Learning how text maps to binary at the byte level
- Generating sample binary data for teaching or demos
- Verifying byte-level encoding of short strings
- Puzzle and CTF-style text obfuscation
Frequently Asked Questions
Why is each binary group 8 bits?
Text is first converted to UTF-8 bytes, and each byte is exactly 8 bits, so every group you see represents one byte of the encoded text.
Why does one character sometimes produce more than one binary group?
This tool is UTF-8-byte-based. ASCII characters use a single byte, but many non-ASCII characters (accented letters, emoji, CJK text) are encoded as 2, 3, or 4 UTF-8 bytes, each shown as its own 8-bit group.
Can I convert the binary back to text?
Yes, use the companion Binary to Text Converter tool, which reverses this exact process.
Does whitespace in my input matter?
Spaces, tabs, and line breaks in your text are each encoded as their own byte and included in the binary output, just like any other character.
Is my text uploaded anywhere?
No, conversion happens locally using your browser's built-in TextEncoder API. Nothing is sent to a server.