Text to Binary Converter
Convert text to binary code instantly. Supports ASCII and Unicode.
How it works
Each character is converted to its 8-bit binary representation using Unicode code points.
Example: 'A' → 01000001 (decimal 65)
About the Text to Binary Converter
The Text to Binary Converter transforms any text string — including letters, numbers, symbols, and Unicode characters — into their binary (base-2) equivalents. Each character is mapped to its Unicode code point and expressed as a sequence of 0s and 1s, either in 8-bit (standard ASCII) or 16-bit (extended Unicode) mode.
Binary is the foundational language of digital computers. All data stored and processed by machines ultimately reduces to binary digits. Understanding how text maps to binary is essential for computer science education, low-level programming, networking, and data encoding tasks.
How to Convert Text to Binary Online
- Type or paste your text into the Input Text box.
- Choose 8-bit (ASCII) for standard English text, or 16-bit (Unicode) for extended characters, emoji, or multilingual content.
- Select your preferred output format: Space Separated (one byte per group), Compact (no delimiters), or Newline (one byte per line).
- The Binary Output updates instantly — no button click needed.
- Click Copy to copy the result to your clipboard.
Common Use Cases for Text to Binary Conversion
- Computer science education — Teach and learn how characters are stored as bits and bytes.
- Data encoding and transmission — Verify binary payloads in network protocols and serial communication.
- Debugging low-level code — Inspect binary representations when working with bitwise operations or binary file formats.
- Steganography and encoding puzzles — Embed hidden messages in binary form for CTF challenges or security research.
- Digital art and typography — Use binary text as a visual design element in technical presentations or posters.
- Unicode exploration — Discover the binary codes behind emoji and non-ASCII characters.
Frequently Asked Questions
What is binary code?
Binary code is a system that represents data using only two digits: 0 and 1. Every piece of information a computer processes — text, images, audio — is ultimately encoded in binary at the hardware level.
How is text converted to binary?
Each character in your text has a numeric code point defined by the Unicode standard. The converter takes that number and expresses it in base-2 notation, padding to 8 or 16 bits depending on the selected mode. For example, the letter A is code point 65, which becomes 01000001 in 8-bit binary.
What is the difference between 8-bit and 16-bit mode?
8-bit mode pads each character code to 8 digits, which covers the standard ASCII range (0–127). 16-bit mode pads to 16 digits, supporting the full Unicode Basic Multilingual Plane including accented letters, symbols, and emoji.
Which output format should I use?
Space Separated is the most readable — each byte group is clearly delimited. Compact removes all spaces, producing a raw bit stream useful for some protocols. Newline puts each character on its own line, making per-character analysis easy.
Does this tool support Unicode and emoji?
Yes. Switch to 16-bit mode to correctly represent Unicode characters beyond the basic ASCII range, including accented letters (é, ü), CJK characters, and emoji. Each character is processed via its Unicode code point.
Is my text data sent to a server?
No. All conversion happens entirely in your browser using JavaScript. Your text never leaves your device, making this tool safe for sensitive or private data.
How do I convert binary back to text?
Use our Binary to Text Converter to reverse the process — paste your binary string and get the original text back instantly.