Text to Decimal Converter

Convert text to decimal online

This text to decimal converter can produce decimal UTF-8 byte values or decimal Unicode code points. Use byte mode when you need the encoded UTF-8 representation of a string. Use code-point mode when you need Unicode numbers such as 233 for é or 128512 for 😀.

The tool handles ASCII-compatible text, accented text, non-Latin scripts, symbols, emoji, combining sequences and supplementary-plane characters. You can choose spaces, commas, comma-space or line breaks as separators, and optional normalization is applied only when selected.

Text to decimal examples

Default input:

Hello, café 😀

UTF-8 byte output:

72 101 108 108 111 44 32 99 97 102 195 169 32 240 159 152 128

Unicode code-point output:

72 101 108 108 111 44 32 99 97 102 233 32 128512

ASCII-range characters have the same code-point value and UTF-8 byte value. Outside ASCII, the values usually differ.

UTF-8 bytes vs Unicode code points

Unicode code points identify abstract characters and text components. UTF-8 encodes those code points into bytes, using one to four bytes per code point. One visible character may contain multiple code points, and one code point may require multiple UTF-8 bytes. This is why a string to decimal conversion needs an explicit output model.

Text to ASCII decimal

ASCII covers values from 0 through 127. Standard English letters, digits and common punctuation use one UTF-8 byte, so their Unicode code-point values and UTF-8 byte values are the same. For example, A produces 65 in both modes. Accented characters, non-Latin scripts, symbols and emoji are outside ASCII, so é produces 195 169 in byte mode and 233 in code-point mode.

Decimal separators and output formats

Separator choice changes only formatting, not the underlying values. For Hi, spaces produce 72 105, commas produce 72,105, comma and space produces 72, 105, and line breaks produce one value per line.

Unicode normalization and decimal output

Visually identical strings may use different code-point sequences. NFC often composes characters, NFD often decomposes them, and NFKC or NFKD can perform compatibility transformations. Normalization can change UTF-8 bytes, code-point values and counts, so this converter does not normalize unless requested.

Composed é

Code points: 233. UTF-8 bytes: 195 169.

Decomposed e plus U+0301

Code points: 101 769. UTF-8 bytes: 101 204 129.

How to use the converter

1. Paste or type text into the input field.
2. Choose UTF-8 bytes or Unicode code points.
3. Select spaces, commas, comma-space or line breaks.
4. Optionally select a Unicode normalization form.
5. Convert the text, then copy or download the decimal result.

Common use cases

• Convert ASCII text to decimal values.
• Inspect UTF-8 byte sequences.
• Generate Unicode code-point lists.
• Create encoding test fixtures.
• Debug differences between bytes and characters.
• Inspect emoji and non-Latin text.
• Compare composed and decomposed Unicode text.
• Create examples for documentation and teaching.

Privacy and local processing

This converter processes text with JavaScript directly in your browser. Your input is not submitted to UnicodeNow servers.

Frequently asked questions