Text to ASCII Code Converter
Convert text to ASCII (char code) values. Free, instant, no signup.
How to use this tool
- Enter text in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your ascii codes and the full breakdown beneath it.
Convert each character in your text to its ASCII (Unicode code point) decimal value, useful for debugging encoding issues.
How it works
Text to ASCII Code Converter takes a string of characters and outputs the numeric ASCII (or Unicode) code point value for each character. The output is a space-separated sequence of integers, one per character, representing the underlying numeric values the computer uses to store the text.
Type or paste your text into the input field and the tool produces a list of decimal code point values. For standard ASCII characters (letters, digits, punctuation, control characters) the values range from 0 to 127. Extended characters and Unicode produce higher values.
This is useful for debugging encoding issues, learning how character encoding works, building low-level data parsers, encoding payloads for protocols that use numeric character representations, or verifying that text contains only expected characters (for example, checking that no zero-width characters have crept into a string).
Worked example
Find hidden characters in a copied string
- Paste a string that looks like 'Hello' but behaves oddly in code.
- Enter it into the Text field.
- Click Convert.
- Scan the output: 72 101 108 108 111 8203
- Identify 8203 as the zero-width space (U+200B) appended at the end.
The hidden zero-width space character (code point 8203) is revealed in the numeric output.
Common mistakes to avoid
- Expecting the output for emoji or non-Latin characters to be a simple 2-digit number: Unicode code points for emoji range from 127744 upward and multi-code-point sequences produce multiple numbers.
- Pasting formatted text with invisible Unicode characters (zero-width joiners, directional marks) and being surprised by unexpected numbers: this is the tool working correctly and revealing hidden characters.
- Confusing ASCII code points with HTML numeric entities: ASCII code point 60 for the less-than sign is written as < in HTML, not just 60.
Key terms
- ASCII
- American Standard Code for Information Interchange -- a 7-bit character encoding that assigns numeric values 0-127 to English letters, digits, punctuation, and control characters.
- Code point
- The unique numeric identifier assigned to a character in the Unicode standard. ASCII code points are a subset of Unicode, covering 0-127.
- Control character
- Non-printable ASCII characters with code points 0-31 and 127, such as newline (10), carriage return (13), and tab (9), used to control text formatting or communication protocols.
Frequently asked questions
- What is an ASCII code?
- ASCII assigns a number (0-127) to each character. For example, 'A' is 65 and 'a' is 97. Unicode extends this to cover all international characters.