ASCII Converter — Free Online Tool
Last updated: January 2025
What is ASCII Converter?
ASCII Converter translates text to decimal ASCII codes and converts ASCII decimal values back to text.
When to use ASCII Converter?
Use it for learning ASCII encoding, debugging text data, programming exercises, and understanding character encoding.
How to use this tool
- 1Paste text or ASCII decimal values
- 2Choose 'Text to ASCII' or 'ASCII to Text'
- 3Copy the converted result
Examples
| Input | Output |
|---|---|
| Hello | 72 101 108 108 111 |
| 72 101 108 108 111 | Hello (ASCII to text) |
| A | 65 |
| 65 66 67 | ABC |
| Space | 83 112 97 99 101 (the word 'Space') |
Rules & Behavior
- Each character converted to decimal ASCII code (0-127)
- Extended ASCII 128-255 also supported
- Values separated by spaces
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Frequently Asked Questions
What is ASCII?
ASCII (American Standard Code for Information Interchange) is a 7-bit character encoding standard that maps 128 characters (letters, numbers, symbols) to numbers 0-127.
What is the ASCII code for 'A'?
Uppercase 'A' is ASCII code 65. Lowercase 'a' is 97. '0' (zero) is 48. Space is 32. These are important to remember in programming.
Is ASCII the same as Unicode?
ASCII is a subset of Unicode. The first 128 Unicode code points are identical to ASCII. Unicode extends beyond ASCII to cover thousands of characters from all languages.
What is extended ASCII?
Extended ASCII (128-255) adds characters beyond the original 128 — including accented letters, box drawing, and symbols. Different extended ASCII variants exist (Latin-1, Windows-1252, etc.).
Can I use it to learn about character encoding?
Absolutely! Converting text to ASCII codes is one of the best ways to understand how computers store characters internally.