Text to Binary Converter

Translate any text into binary code. This free tool converts letters, numbers, and symbols into their binary equivalent. Use it for learning, programming, or data encoding projects.

Text Input

Add spaces between bytes

Show decimal values

Binary Output

How it works

Each character is converted to its ASCII/UTF-8 code point, then to an 8-bit binary number. For example, "H" has a decimal value of 72, which is 01001000 in binary.

How It Works

This text to binary converter translates any text string into its binary representation using ASCII or UTF-8 encoding. Each character becomes an 8-bit binary number corresponding to its character code.

The conversion process:

Get character codes: Each character is converted to its ASCII/UTF-8 numeric value (A=65, a=97, etc.).
Convert to binary: Each decimal value is converted to 8-bit binary (65 = 01000001).
Format output: Binary bytes are displayed with optional spaces between them for readability.
Handle special chars: Spaces, punctuation, and Unicode characters are all converted to their binary equivalents.

For example: "Hi" becomes 01001000 01101001 (H=72=01001000, i=105=01101001). This is how computers internally store and process all text data.

When You'd Actually Use This

Learning Binary Encoding

Understand how computers represent text as binary at the fundamental level.

Programming Education

Teach students about character encoding, ASCII values, and binary representation.

Data Encoding Projects

Convert text to binary for steganography, encoding schemes, or data transmission projects.

Puzzle and CTF Challenges

Encode or decode binary messages in cybersecurity competitions and puzzle games.

Debugging Encoding Issues

Inspect the actual binary values of text to debug character encoding problems.

Creating Binary Art

Generate binary patterns from text for visual art, QR codes, or creative projects.

What to Know Before Using

ASCII vs UTF-8 encoding

ASCII uses 8 bits per character (0-127). UTF-8 uses 1-4 bytes for Unicode. Basic text is the same in both.

Each character = 8 bits (1 byte)

Standard ASCII text uses exactly 8 bits per character. 'Hello' (5 chars) = 40 bits of binary.

Spaces have binary values too

Space character is ASCII 32 = 00100000. Don't forget to account for spaces in your text.

Case matters in text

'A' (65 = 01000001) and 'a' (97 = 01100001) have different binary values. Case changes bit 5.

Output can get very long

Binary representation is 8x longer than the original text. A 100-character message becomes 800 bits.

Common Questions

What's the binary for common letters?

A=01000001, B=01000010, C=01000011, a=01100001, b=01100010. Uppercase starts with 010, lowercase with 011.

How do I convert binary back to text?

Use a binary-to-text converter. Group bits into 8s, convert each to decimal, then map to ASCII characters.

Can I convert emoji to binary?

Yes, but emoji use multiple bytes in UTF-8 (up to 4 bytes = 32 bits). Simple 8-bit converters only handle basic ASCII.

What's the binary for numbers 0-9?

0=00110000, 1=00110001, ... 9=00111001. Digit characters are ASCII 48-57, not the numeric values themselves.

Why are there spaces in the binary output?

Spaces between bytes are for readability only. 01001000 01101001 is the same as 0100100001101001.

What's special about ASCII 128-255?

These are extended ASCII characters (accented letters, symbols). Values vary by encoding. UTF-8 uses multiple bytes for these.

Can I convert entire sentences to binary?

Yes! Every character including spaces and punctuation converts. Just expect long output - 8 bits per character.

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