Is this true ASCII or Unicode?

Codes 0 to 127 match classic ASCII. Above that, the tool uses Unicode code points so it can handle any character.

How do I format codes for decoding?

Separate each number with a space, comma or new line. Other characters between numbers are ignored.

No. Conversion happens entirely in your browser, so your text never leaves your device.

Text Tools

Convert text to decimal ASCII codes and decode ASCII codes back to text.

Free browser toolRuns in your browserNo sign-up

Your text

Encoding shows the decimal code point of each character. When decoding, separate codes with spaces, commas or new lines.

This converter turns text into the decimal code of each character and turns those codes back into text.

It uses Unicode code points, so it handles plain letters, accented characters and emoji, not just classic 7-bit ASCII.

It is useful for learning how characters are numbered, debugging encoding issues and preparing data.

Text to ASCII codes

Input: Hi

Output: 72 105

Each character is shown as its decimal ASCII code number.

Is this true ASCII or Unicode?: Codes 0 to 127 match classic ASCII. Above that, the tool uses Unicode code points so it can handle any character.
How do I format codes for decoding?: Separate each number with a space, comma or new line. Other characters between numbers are ignored.
Is my text uploaded anywhere?: No. Conversion happens entirely in your browser, so your text never leaves your device.

Open a related tool to prepare your files or refine the finished result.