Web Dev Tools
Binary Translation Tool
Convert text to binary (010101) and binary to text. Also supports Decimal number to Binary conversion. Learn computer language instantly.
Use Binary Translation Tool to get instant results without uploads or sign-ups. Everything runs securely in your browser for fast, reliable output.
Your results will appear here.
About this tool
Everything inside a computer is ultimately represented as 0s and 1s. This Binary Converter allows you to peek behind the curtain and translate human-readable text into machine code.
You can write a "secret message" in binary to your friends, or decode a binary string you found online. We map each character to its 8-bit ASCII/UTF-8 byte sequence.
Usage examples
Text to Binary
Alphabet
A → 01000001
Number to Binary
Decimal
5 → 101
Binary to Decimal
Convert binary number
1010 → 10
Message Encoding
Secret binary message
Hi → 01001000 01101001
Computer Science
Learn binary system
255 → 11111111 (8-bit max)
How to use
- Enter your text or numbers.
- Select the conversion mode (Text to Binary, Binary to Text, etc.).
- Click "Run Tool" to see the translation.
- Copy the binary code to share.
Benefits
- Bi-directional Text Translation
- Number Conversion (Decimal ↔ Binary)
- Space separated options
- 8-bit padding support
FAQs
Why is A = 01000001?
The letter "A" has the ASCII decimal value of 65. In binary (base-2 math), 65 is written as 1000001. We pad it with a zero to make it a standard 8-bit byte. Each character has a unique ASCII value: A=65, B=66, a=97, 0=48, space=32.
How do computers use binary?
Computers process information using transistors that have two states: on (1) or off (0). All data, including text, images, and programs, is ultimately stored and processed as sequences of binary digits. 8 bits = 1 byte. Modern CPUs process 64 bits at a time. Binary enables reliable digital storage and computation.
Can I convert numbers to binary?
Yes, select "Decimal Number to Binary" mode to convert regular numbers into their binary representation. For example, 10 in decimal equals 1010 in binary. Binary numbers follow powers of 2: 1, 2, 4, 8, 16, 32, 64, 128, etc. Each bit position doubles in value from right to left.
What's the difference between text and number conversion?
Text to binary converts each character using its ASCII code, while number conversion directly converts the numeric value to binary. The number 5 as text (character "5") gives "00110101" (ASCII 53), but as a number gives just "101" (binary for 5). Text preserves character meaning, numbers preserve numeric value.
Why do we use hexadecimal and octal with binary?
Hexadecimal (base-16) and octal (base-8) provide compact representations of binary data. 1 hex digit = 4 binary bits (F=1111). 1 octal digit = 3 bits (7=111). Easier for humans to read/write than long binary strings. Common in programming: hex for colors (#FF5733), memory addresses (0x4A3F), and debugging.
What is two's complement and why does it matter?
Two's complement is how computers represent negative numbers in binary. Flip all bits and add 1. Example: -5 in 8-bit = 11111011. Most significant bit indicates sign (1=negative, 0=positive). Enables simple addition/subtraction circuits. Range for 8-bit: -128 to 127. Understanding this helps with programming and debugging.
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