Binary ↔ Text Converter

What Is Binary Encoding?

Binary is the base-2 number system that uses only two digits — 0 and 1. All digital data, including text, is ultimately stored as binary in computers. Text encoding standards like ASCII (American Standard Code for Information Interchange) map each character to a numeric value, which is then represented in binary. For example, the letter 'A' has the ASCII value 65, which is 01000001 in binary. Unicode extends this concept to cover characters from every writing system in the world, using variable-length binary representations.

How to Use

Select the conversion direction (Text to Binary or Binary to Text) and enter your input. For binary input, separate each byte with a space (e.g., 01001000 01101001). The result updates in real time.

Binary Representation

Each character is converted to its Unicode code point in binary. ASCII characters use 8 bits (1 byte). Characters are separated by spaces in the binary output. The conversion supports the full Unicode range.

Common Use Cases

• Education — learn how computers represent text as binary numbers
• Debugging — inspect the binary representation of strings in software development
• Data analysis — verify encoding correctness for file processing
• Puzzles and games — encode and decode secret messages in binary
• Computer science studies — practice binary arithmetic and encoding concepts

ASCII Quick Reference

Common ASCII values in binary: 'A' = 01000001 (65), 'Z' = 01011010 (90), 'a' = 01100001 (97), 'z' = 01111010 (122), '0' = 00110000 (48), '9' = 00111001 (57), space = 00100000 (32). Uppercase letters range from 65-90, lowercase from 97-122, and digits from 48-57. The difference between uppercase and lowercase letters is always 32 (one bit flip).

Privacy

All processing happens in your browser. No data is sent to any server.