Are these byte values or code points?

They are Unicode code points, not bytes. Each character maps to one decimal number — its position in the Unicode table. For ASCII this matches the byte value, but for higher characters it is the scalar value, not a UTF-8 byte.

How are emoji handled?

An emoji is a single code point above U+FFFF, so it produces one large decimal number such as 128640 for the rocket. The tool reads the string by code point, so it never splits an emoji into surrogate halves.

How do I decode a list of numbers?

Paste the decimal code points separated by spaces. The tool parses each as a number and converts it back to its character with the standard code-point lookup, rebuilding the original string.

What range of values is valid?

Valid Unicode code points run from 0 to 1114111 (U+10FFFF), excluding the surrogate range 55296 to 57343. The decoder rejects values outside this range or non-numeric tokens rather than producing invalid characters.

Is this the same as ASCII codes?

For characters 0 to 127 it is identical to ASCII. Beyond that it extends to the full Unicode range, so it also covers accented letters, symbols, and emoji that plain ASCII cannot represent.

Decimal Char Code Converter

Every character has a numeric Unicode code point. This converter lists those code points in decimal for any text, and turns a list of decimal numbers back into a string.

How it works

For encoding, the tool reads the string one code point at a time (so emoji and other astral characters stay whole) and prints each code point as a decimal number:

A   -> 65
z   -> 122
🚀  -> 128640

For decoding, the input is split on whitespace, each token is parsed as a decimal number, and String.fromCodePoint rebuilds the character. Values must be valid Unicode scalar values (0 to 1114111, excluding the surrogate block).

Example and notes

The word Hi becomes 72 105. These are code points, which equal byte values only for ASCII; for anything above U+007F the decimal number is the character’s Unicode scalar value, not a UTF-8 byte. That makes this tool ideal for building HTML numeric entities (🚀) or debugging which exact character a glyph maps to.