Free Text to Binary Converter - Binary, Hex, Octal
Convert text to binary, hexadecimal or octal representation. Includes character breakdown table.
What Is Text to Binary Converter?
Text-to-binary conversion transforms human-readable text into its binary representation — each character is converted to its ASCII or Unicode code point, then expressed as a sequence of 0s and 1s. The letter "A" becomes 01000001, "B" becomes 01000010, and so on. Binary is the fundamental language of computers — every file, image, video and program is ultimately stored as binary data.
Understanding binary representation is foundational to computer science. This tool converts in both directions — text to binary and binary back to text — making it useful for education, debugging and creating binary-encoded messages.
How to Use This Tool
Type or paste your text in the input field.
Select text-to-binary or binary-to-text mode.
The conversion happens instantly as you type.
Choose the output format: grouped by character (with spaces) or as a continuous binary string.
Copy the binary output or decoded text using the copy button.
Tips & Best Practices
Standard ASCII characters use 8 bits (1 byte) each — uppercase A is 01000001, lowercase a is 01100001.
A space character is 00100000 — it is not empty in binary.
Unicode characters (emoji, non-Latin scripts) may use 2 or more bytes, producing longer binary sequences.
Binary is base-2: each position represents a power of 2 (128, 64, 32, 16, 8, 4, 2, 1).
Common Use Cases
Learning how computers represent text at the most fundamental level.
Creating binary-encoded messages for puzzles, games or educational activities.
Debugging character encoding issues by inspecting binary representations.
Teaching binary number systems in computer science education.