ASCII Reference
About Binary Converter
Binary is the fundamental language of computers, consisting only of 0s and 1s. Our free online Binary Converter allows you to easily translate plain text into binary code, or decode binary back into readable text.
How It Works
When converting text to binary, the tool first converts each character into its ASCII (or UTF-8) decimal value, and then translates that decimal number into an 8-bit binary sequence. Decoding reverses this exact process.
Common Use Cases
- Learning and teaching computer science fundamentals
- Decoding hidden binary messages in puzzles or games
- Understanding how text is stored at the machine level
- Encoding simple text strings for fun or obfuscation
Frequently Asked Questions
In standard computing, one character of text is typically stored as one byte. One byte consists of 8 bits (binary digits), which allows for 256 different possible characters.
This specific tool is optimized for text-to-binary conversion. If you type the number '5', it will convert the character '5' to binary, not the mathematical integer 5.
Binary is a base-2 number system using only 0 and 1. Computers use binary because digital circuits have two states: on (1) and off (0).
Each character is represented by 8 bits (1 byte) in ASCII/UTF-8. For example, 01001000 01101001 = 'Hi'. Paste binary digits and the tool converts them to text instantly.
Hexadecimal (base-16) uses digits 0-9 and letters A-F. It's a compact way to represent binary data — each hex digit represents exactly 4 binary digits. For example, FF = 11111111 = 255.
They are different number bases: binary (base-2), octal (base-8), and hexadecimal (base-16). Hex is most common in programming for colors (#FF0000), memory addresses, and byte values.