Text to ASCII Converter
Convert text to ASCII codes and decode ASCII numbers back to text instantly.
Convert text to ASCII codes and back
The Text to ASCII Converter shows the numeric character code for every character in your text, and decodes a list of codes back into readable text. Codes are space-separated, so each character maps cleanly to one number. Type or paste in either direction and copy the result — processed instantly and privately in your browser.
What is ASCII?
ASCII (American Standard Code for Information Interchange) assigns a number to each character: 65 for "A", 97 for "a", 48 for "0", and 32 for a space. The original ASCII set covers 128 characters, and modern systems extend it through Unicode code points. Knowing a character's code is useful in programming, data processing, and understanding how text is stored.
How to use it
- Choose Text → ASCII or ASCII → Text.
- Type text, or paste decimal codes separated by spaces.
- Copy the result, or Swap it back into the input.
Common ASCII codes
| Character | ASCII |
|---|---|
| A–Z | 65–90 |
| a–z | 97–122 |
| 0–9 | 48–57 |
| space | 32 |
| ! | 33 |
Why character codes are useful
- Programming — comparing, sorting, and transforming characters by their codes.
- Debugging — spotting invisible characters like tabs or non-breaking spaces.
- Learning — understanding how computers represent text.
- Data cleaning — identifying unexpected symbols by their code.
ASCII and Unicode
ASCII covers the basic English characters in codes 0–127. Anything beyond that — accented letters, emoji, other scripts — uses higher Unicode code points, which this tool also reports. For everyday English text the numbers match classic ASCII exactly, making it a reliable reference and a handy learning aid.
Private and free
All conversion happens in your browser, with nothing uploaded and no limits. Use it as much as you like, free.
Frequently asked questions
What is the ASCII code for A?
Uppercase A is 65. Lowercase a is 97. The tool shows the code for every character you enter.
How do I decode ASCII to text?
Paste the codes as space-separated numbers and choose ASCII → Text. Each number becomes its character.
Does it support characters beyond ASCII?
Yes. Characters outside basic ASCII report their Unicode code point, and decoding works with those numbers too.
Is it free and private?
Yes. It runs entirely in your browser with nothing uploaded, and it is completely free.