Text to Binary Converter

How ASCII assigns binary values to characters

ASCII assigns a unique integer code to each character. The printable characters span codes 32 (space) through 126 (tilde ~). Letters, digits, and punctuation all have fixed codes: uppercase A is 65, lowercase a is 97, the digit 0 is 48, and the exclamation mark is 33.

These integer codes are stored in memory as bytes. A byte is 8 bits. When you convert a character to binary, you write that ASCII code in base-2 padded to 8 digits. The letter H is code 72, which in binary is 01001000. The letter i is code 105, which is 01101001. The word Hi in binary is 01001000 01101001.

This tool applies that mapping to every character in your input and outputs the binary string with one 8-bit group per character, separated by spaces. The output represents exactly how those characters would look in a raw memory dump, byte by byte.

Uses in steganography and encoding tutorials

Steganography - hiding information within other data - often involves embedding text as binary inside images, audio files, or other binary formats. Understanding the binary representation of your payload text is a prerequisite for any manual steganography exercise. This converter gives you that binary form instantly, which you can then embed bit by bit into your carrier.

Character encoding tutorials and computer science courses frequently illustrate string storage by showing the binary value of each character. Being able to enter any text and immediately see all the binary values - without writing code - makes it much easier to follow along or verify your understanding.

CTF (capture-the-flag) security challenges sometimes present messages encoded as binary strings. Converting text to binary here helps you generate test cases and verify that your decoder is working correctly.

How multi-character strings are handled

Every character in your input - including spaces, punctuation, digits, and letters - gets its own 8-bit binary group. A space character (ASCII 32) becomes 00100000. A period (ASCII 46) becomes 00101110. Newlines are included as 00001010 (ASCII 10 for LF).

The output is a single line of 8-bit groups separated by spaces, reflecting the byte-by-byte layout of the string in memory. For multi-line input, newlines in the text appear as their ASCII binary values rather than breaking the output into multiple lines. This keeps the output easy to copy as one block.

Frequently asked questions