Decimal to ASCII Converter

What is Decimal to ASCII Converter?

Type or paste space- or comma-separated decimal character codes and get the equivalent text instantly: the reverse of the ASCII to Decimal Converter above. Useful when you've got a list of character codes from a protocol spec, an old data dump, or a debugging session and need to know what text they actually spell out. Invalid entries (anything that isn't a whole number) are flagged rather than silently dropped, so you can catch a typo in a long list of codes. Conversion happens live as you type, entirely in your browser. Nothing is sent to a server.

Decimal Code to Character Chart

How to Use the Decimal to ASCII Converter

1. 1

   Enter the Decimal Codes: Type or paste space- or comma-separated decimal codes, such as 72 101 108 108 111.

2. 2

   Read the Decoded Text Instantly: The resulting text appears automatically as you type, with invalid entries flagged.

3. 3

   Copy the Result: Use the copy button to copy the decoded text for use elsewhere.

How Decimal Codes Map Back to Characters

Every character has a numeric code point, and this tool reads each decimal number as one of those code points, then looks up the character it corresponds to. It's the reverse lookup of the ASCII to Decimal Converter: instead of character → number, it's number → character, one code at a time.

How to Convert Decimal Codes to Text

Take each decimal number in turn and look up the character at that code point. "67 111 100 101" reads as 67 → C, 111 → o, 100 → d, 101 → e, spelling out "Code".

Examples

72 101 108 108 111 → Hello
72 105 33 → Hi!
97 49 → a1