ASCII Converter

What is the ASCII Converter?

Every character on your screen is stored internally as a number. This tool converts readable text into those underlying character codes — in decimal, hexadecimal or binary — and can also work in reverse, turning a list of codes back into text.

How to use it

1. Choose Text → Codes to convert typed text into character codes, or Codes → Text to decode a list of codes.
2. When converting to codes, pick a number format and a separator to match how you plan to use the output.
3. When converting from codes, paste the numbers in and select the format they're written in (decimal, hex or binary).

The classic ASCII table only covers the codes 0-127, representing English letters, digits and common punctuation, which is why it was historically the standard for early computing and telecommunication protocols. This tool actually reads full Unicode code points, so it correctly handles accented letters, symbols and characters from non-English alphabets too, not just plain ASCII text. Common uses include debugging character-encoding issues, understanding how a programming language represents individual characters internally, or building simple substitution-style puzzles for a game or classroom exercise.