Text to ASCII codes

Every character has a number: its code point. For the common English letters and digits these are the familiar ASCII values (A is 65, a is 97), for all other characters the corresponding Unicode code points. This tool shows those numbers and also converts them back into text - handy for learning, debugging or identifying a single special character.

The direction is detected automatically: if the input is only digits and spaces, it is read as codes and turned into text; otherwise the text is split into its space-separated code points. Since real code points are used, an emoji yields exactly one number and is reassembled correctly when converting back.

The whole conversion runs entirely locally in your browser in pure JavaScript - your text is not uploaded, not stored, and no foreign library is loaded from a CDN. If a code is outside the valid range, the tool says so honestly.

Specifications

In 3 steps

1. Paste text or number codes into the text field.
2. Click convert - the direction is detected automatically.
3. Read the result or download it as a text file.

Limitations: It outputs decimal code points, separated by spaces. For the common characters these equal ASCII, beyond that the Unicode code points. When converting back, each number must be a valid code point (0 to 1114111), otherwise the tool reports an honest error. Other representations such as hexadecimal are not produced.

FAQ

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Text to binary · Base converter · Unicode escape · Morse code