Text to Binary Converter
Convert text to binary, hex, octal, and decimal — or convert binary back to text.
What Is Text-to-Binary Conversion?
Text-to-binary conversion transforms each character in your text into its binary (base-2) representation. Each character is converted to its ASCII or Unicode code point, then expressed as a sequence of zeros and ones. For example, the letter 'A' becomes 01000001. This tool also converts to hexadecimal and octal representations.
How Do I Convert Text to Binary Online?
Type or paste your text into the input area and the tool instantly shows the binary, hexadecimal, and octal representations. Each character's code is displayed with spaces between values for readability. You can also paste binary back into the decode field to convert it back to readable text.
When Would I Need Text-to-Binary Conversion?
Binary conversion is useful for computer science education, understanding how computers store text, debugging character encoding issues, preparing data for low-level programming, creating binary art or puzzles, and understanding protocols that work at the byte level. It is also a popular tool for educational demonstrations.
What Character Encoding Does This Tool Use?
The tool converts text using UTF-8 encoding, which is the standard encoding for the web. ASCII characters (English letters, numbers, basic punctuation) use 8 bits each. Extended Unicode characters (emoji, accented letters, CJK characters) may use multiple bytes in UTF-8, and the tool displays all bytes correctly.
How Many Bits Does Each Character Use?
Standard ASCII characters (English letters, digits, basic punctuation) use 8 bits (1 byte) each. Extended characters like accented letters, Chinese characters, and emoji use 2-4 bytes in UTF-8 encoding. For example, the letter 'A' is 01000001 (8 bits), the Euro sign is 11100010 10000010 10101100 (24 bits), and a typical emoji is 32 bits (4 bytes).
What Is the Difference Between Binary, Octal, and Hexadecimal?
Binary (base-2) uses digits 0-1, octal (base-8) uses 0-7, and hexadecimal (base-16) uses 0-9 and A-F. One hex digit equals exactly 4 binary digits, and one octal digit equals 3 binary digits, making them convenient shorthands. Hexadecimal is the most common in programming — used for colors (#FF0000), memory addresses, and byte values. This tool converts text to all three formats simultaneously.