🔢 Number Tools
ASCII Converter
Convert text to ASCII codes (decimal, hex, binary) and back. Free.
ASCII
How to use the ASCII
1
What is ASCII?
ASCII (American Standard Code for Information Interchange) maps each English letter, digit and punctuation mark to a number between 0 and 127. Capital A is 65, lowercase a is 97, the digit 0 is 48, and the space is 32. ASCII is the foundation of nearly all modern text encodings.
2
Common ASCII codes
32: space · 33: ! · 48–57: digits 0–9 · 65–90: A–Z · 97–122: a–z · 10: newline · 13: carriage return · 9: tab. Characters above 127 fall outside standard ASCII and are part of Unicode (UTF-8).