Text to ASCII Converter
Convert text to ASCII codes and ASCII codes back to text instantly.
Each character becomes its decimal ASCII code, separated by spaces.
How to use this tool
Pick a direction
Choose Text → ASCII codes or ASCII codes → Text with the tabs above.
Type or paste
Enter your text or space-separated codes like 72 105.
Convert & copy
Hit Convert, then copy the result in one click.
Frequently asked questions
What are ASCII codes?
ASCII is the standard numbering system computers use for text: every character gets a number from 0 to 127. For example, "H" is 72 and "i" is 105, so "Hi" becomes "72 105".
How do I convert codes back to text?
Switch to the "ASCII codes → Text" tab, paste space-separated numbers like "72 105", and hit Convert. Each number must be between 0 and 255.
What about characters beyond ASCII, like é or emoji?
This tool works with byte values 0–255, which covers ASCII plus Latin-1 characters like é, ü, and ñ. For full Unicode/emoji conversion, use the Text ↔ Binary converter, which is UTF-8 aware.
Is my text uploaded anywhere?
No. Conversion happens entirely in your browser with JavaScript. Nothing you type ever leaves your device.
Why would I need ASCII codes?
They're handy for programming (character encoding), debugging text protocols, CTF puzzles, and understanding how computers store text.