Binary to Text Converter Online

Convert binary code back to readable text instantly in your browser. This free tool decodes binary strings client-side, so your data stays completely private.

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Text ↔ Binary Converter

Convert text to binary, hexadecimal, octal, or decimal — and back. Supports full Unicode via UTF-8 encoding.

Text

Binary

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Quick Reference — Text Encoding

How it works: Each character is first encoded to bytes using UTF-8, then each byte is represented in the selected number base (binary, hex, octal, or decimal).

Binary (Base 2): Uses digits 0 and 1. Each byte is 8 bits (e.g., "A" = 01000001). Fundamental to how computers store data.

Hexadecimal (Base 16): Uses 0-9 and a-f. Each byte is 2 hex digits (e.g., "A" = 41). Common in color codes, memory addresses, and debugging.

Octal (Base 8): Uses digits 0-7. Each byte is up to 3 octal digits (e.g., "A" = 101). Used in Unix file permissions.

Decimal (Base 10): Standard numbers 0-255 for each byte (e.g., "A" = 65). Same as ASCII values for the basic Latin alphabet.

Unicode support: Non-ASCII characters (emoji, CJK, etc.) produce multiple UTF-8 bytes. For example, "hello" in Chinese (你好) produces 6 bytes.

How binary to text conversion works

Binary to text conversion reads sequences of 0s and 1s, groups them into 8-bit bytes, and maps each byte to its corresponding ASCII or UTF-8 character. For example, the binary sequence 01001000 01101001 decodes to "Hi". The converter handles both space-separated and continuous binary strings.

Common use cases for binary to text conversion

Decoding binary to text is useful for CTF (Capture the Flag) challenges in cybersecurity, understanding computer science fundamentals, decoding binary-encoded messages, and verifying that binary data transmission produced the correct output. It is also a helpful educational tool for learning about character encoding.

Frequently Asked Questions

What happens if the binary string length is not a multiple of 8?

If the binary input is not evenly divisible into 8-bit groups, the remaining bits are typically padded with leading zeros to form a complete byte before decoding.

Can binary to text conversion handle Unicode characters?

Yes. The converter supports UTF-8 encoding, which means it can decode multi-byte Unicode characters including emoji, accented letters, and characters from non-Latin scripts.