Text To ASCII Converter

ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns a number from 0 to 127 to each letter, digit, punctuation mark, and control character; for example, the uppercase letter "A" is always 65, and the space character is always 32.

Those characters fall outside the original 0-127 ASCII range, so this tool flags them and still converts them using their full Unicode code point (for example, é is 233 and 😀 is 128512) rather than silently dropping or mangling them; the warning tells you exactly which characters were outside standard ASCII.

Yes, switch to the "ASCII to Text" tab and paste a list of decimal numbers separated by spaces, commas, or new lines; each number is converted back to its character and joined into the original text.

The same underlying character codes are often needed in more than one format depending on where you are pasting them, for example binary for a networking assignment or hexadecimal for a byte-level debugging session, so this tool computes all four representations at once under "Also view as" instead of making you convert the same text multiple times.

This tool works with Unicode code points, which is what you typically want when converting readable text character by character; it does not break characters into raw UTF-8 bytes, so a character like é is treated as one code point (233) rather than the two bytes UTF-8 would use to store it.