Text to Binary

Convert any text to binary code or decode binary back to readable text. Supports ASCII and Unicode. Choose space, newline, or no separator.

Text to Binary Converter

Convert text to binary code and binary back to readable text. Supports ASCII and Unicode.

Separator (for decoding)

Input Text

Binary Output

01001000 01100101 01101100 01101100 01101111 00101100 00100000 01010111 01101111 01110010 01101100 01100100 00100001

100% local — no data sent anywhere

How to use Text to Binary

1
Select the direction: Text to Binary or Binary to Text.
2
Type or paste your input.
3
See the conversion instantly. Copy result with one click.

Frequently Asked Questions

How does text-to-binary work?

Each character is converted to its ASCII/UTF-8 code point, then that number is represented in binary (base 2) using 8 bits.

Why do I get weird characters when decoding?

This usually means the binary input has an incorrect separator, extra spaces, or is not valid 8-bit ASCII. Check each binary group is exactly 8 digits.

Detailed Guide

Why This Exists

Every character you've ever typed — every letter, number, emoji, and punctuation mark — is stored by your computer as a number. And that number is represented internally in binary: a sequence of 0s and 1s. This is the most fundamental layer of how digital information works.

The text-to-binary converter makes that invisible layer visible. It's useful for computer science students, developers debugging encoding issues, and anyone genuinely curious about what "everything is binary" actually means in practice.

How the Conversion Works

When you type the letter A, your computer looks up its position in the ASCII table: 65. It then represents 65 in base-2 (binary), giving 01000001. That 8-digit sequence is called one byte.

For the word Hello:

H → 72 → 01001000
e → 101 → 01100101
l → 108 → 01101100
l → 108 → 01101100
o → 111 → 01101111

Combined: 01001000 01100101 01101100 01101100 01101111

That's five bytes — 40 binary digits — to represent a five-letter word. Every text file, database record, and URL on the internet is ultimately this kind of sequence.

ASCII vs. Unicode: The Encoding Question

ASCII covers 128 characters: the 26 English letters (upper and lower), digits 0–9, punctuation, and control characters. Each character maps to a number from 0 to 127 and fits in 7 bits (or one byte with a leading zero).

Unicode (UTF-8) extends this to cover over 1.1 million characters — every writing system on earth plus emoji. Common English characters are still one byte in UTF-8, but characters outside the ASCII range use 2–4 bytes.

The emoji 😊, for example, is Unicode code point U+1F60A. In UTF-8, it's encoded as four bytes: F0 9F 98 8A in hexadecimal, or 11110000 10011111 10011000 10001010 in binary.

This tool defaults to UTF-8 encoding, which handles both ASCII and international characters correctly.

How to Use the Tool

Text → Binary:

Select "Text → Binary" mode.
Type or paste your text.
The binary output updates instantly.
Choose your separator: Space (most readable), None (compact), or custom character.

Binary → Text:

Switch to "Binary → Text" mode.
Paste your binary string (e.g., 01001000 01100101 01101100 01101100 01101111).
Set the separator to match what you've pasted (Space is most common).
Your decoded text appears immediately.