Text to Binary Converter

Convert text to binary code and binary back to text instantly. Supports ASCII and UTF-8 encoding with multiple output formats.

100% client-side. Your data never leaves your browser.

Text → Binary

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Bidirectional

Convert text to binary and binary back to text. Click the Swap button to switch direction instantly. Supports decimal, hex, and octal input too.

UTF-8 Support

Handle any character including emoji, accented letters, and international scripts. UTF-8 encoding preserves multi-byte characters correctly.

Character Breakdown

See a detailed table showing each character with its decimal, hexadecimal, octal, and binary values side by side.

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Frequently Asked Questions

How do I convert text to binary?
Type or paste your text into the input field and the tool instantly converts each character to its binary representation. Each ASCII character becomes an 8-bit binary number. For example, A becomes 01000001 and Hello becomes 01001000 01100101 01101100 01101100 01101111.
What is binary code?
Binary code is a number system that uses only two digits: 0 and 1. Computers use binary to store and process all data. Each binary digit is called a "bit", and 8 bits make a "byte" which can represent one ASCII character (values 0–255). Binary is the fundamental language of all digital electronics.
Can I convert binary back to text?
Yes! Click the "Swap Direction" button to switch to Binary → Text mode. Paste your binary code (space-separated 8-bit groups like 01001000 01101001) into the input field and it will be converted back to readable text.
What is the binary code for the letter A?
Uppercase A is 01000001 in binary (decimal 65). Lowercase a is 01100001 (decimal 97). The difference between uppercase and lowercase in binary is always the 6th bit (bit 5).
Does this tool support emoji and special characters?
Yes! Select "UTF-8" encoding to handle all Unicode characters including emoji, accented letters (é, ü, ñ), and characters from other scripts (Chinese, Arabic, Cyrillic). In UTF-8, each character may use 1 to 4 bytes depending on the code point.