Text to Binary / Hex Converter

Convert text to binary, hex, octal, or decimal β€” and back again.

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What is Text to Binary / Hex Conversion?

Computers store and process all data as numbers. Each character in a text string corresponds to a numeric code defined by an encoding standard such as ASCII or Unicode (UTF-8). This tool encodes text by converting each character's code point into alternative number bases: binary (base 2) uses only 0s and 1s, hexadecimal (base 16) uses digits 0–9 and A–F, octal (base 8) uses digits 0–7, and decimal (base 10) is the familiar everyday system. The tool also decodes these formats back to readable text.

These conversions are commonly needed in programming, computer science education, network debugging, and digital forensics. All processing happens entirely in your browser β€” nothing is sent to any server, and no data leaves your device.


How to Use

  1. Choose a direction: Text β†’ Encoding to convert readable text, or Encoding β†’ Text to decode.
  2. Type or paste your input into the text area.
  3. Select which output formats you want (binary, hex, octal, decimal).
  4. Click ✨ Convert to see the result. Use the copy buttons to grab individual outputs.

Frequently Asked Questions

Each character is mapped to its Unicode code point (a number), then that number is converted to binary. For example, the letter "A" has code point 65, which in binary is 01000001. In hex it is 41, in octal 101, and in decimal simply 65. Spaces and other characters follow the same process.

Yes. This tool uses JavaScript's native charCodeAt / codePointAt for code point extraction, which supports the full Unicode range including emojis and non-Latin characters. For multi-byte characters (code points above U+FFFF), the decimal representation shows the full Unicode code point.

No. This tool runs entirely in your browser. Your input is never sent to any server, never logged, and never stored. Closing the tab removes all data immediately.

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