ASCII Converter
Convert text to ASCII decimal codes or ASCII codes back to readable text instantly. Supports all printable characters. Free browser tool.
How to Use
- 1 Select Encode mode to convert text to ASCII codes, or Decode to convert codes back to text
- 2 Enter your text or ASCII codes in the input box
- 3 Click Convert to see the result
- 4 Use the Copy button to copy the output
Use Cases
Convert text strings to their ASCII numeric representations for embedding in protocols, data files, or legacy systems.
Inspect exact character codes when debugging encoding issues, whitespace characters, or special characters in strings.
Explore the ASCII table interactively by converting characters and seeing their numeric values.
FAQ
ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns numbers 0–127 to characters, including letters, digits, punctuation, and control characters.
In this tool, each character is represented as a decimal number (0–127). Multiple characters are separated by spaces, e.g. 'Hi' becomes '72 105'.
Standard ASCII only covers codes 0–127. Extended characters (128–255) are shown as their numeric values but may differ between encodings.
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