Text to ASCII Converter

Convert any text to ASCII character codes — choose decimal, hexadecimal, or binary output.

What Is ASCII?

ASCII (American Standard Code for Information Interchange) is a character encoding standard that represents text using numbers 0–127. Every letter, digit, punctuation mark, and control character has a unique ASCII value. For example, uppercase 'A' is 65, lowercase 'a' is 97, space is 32, and '0' (zero digit) is 48. ASCII was established in 1963 and remains fundamental to computing, programming, and data communication.

How to Convert Text to ASCII

Each character in your text maps to an ASCII number. Paste or type your text into the input box above and the converter outputs the ASCII code for every character, separated by spaces, commas, or another separator of your choice. Switch between decimal (base-10), hexadecimal (base-16), binary (base-2), or octal (base-8) output depending on what your use case requires.

Common ASCII Values

A–Z: 65–90 | a–z: 97–122 | 0–9: 48–57 | Space: 32 | Newline: 10 | Tab: 9 | Exclamation: 33 | At sign: 64

Frequently Asked Questions

ASCII is a character encoding standard assigning numbers 0–127 to letters, digits, and symbols. 'A' = 65, 'a' = 97, space = 32.
Each character maps to an ASCII number. 'Hello' = 72 101 108 108 111. This tool converts each character automatically.
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