Technologies > Character Encodings
This diagram shows the percentages of websites using various character encodings. See technologies overview for explanations on the methodologies used in the surveys. Our reports are updated daily.
How to read the diagram:
UTF-8 is used by 99% of all the websites whose character encoding we know.
| UTF-8 |
| ||
|---|---|---|---|
| ISO-8859-1 |
| ||
| Windows-1252 |
| ||
| Windows-1251 |
| ||
| EUC-JP |
| ||
| W3Techs.com, 26 August 2026 | |||
| Percentages of websites using various character encodings Note: a website may use more than one character encoding | |||
The following character encodings are used by less than 0.1% of the websites
- Shift JIS
- EUC-KR
- Windows-1250
- GB2312
- ISO-8859-2
- Big5
- ISO-8859-15
- US-ASCII
- ISO-8859-9
- GBK
- Windows-1254
- Windows-874
- Windows-1256
- Windows-1255
- TIS-620
- UTF-16
- ISO-8859-7
- Windows-1253
- GB18030
- Windows-1257
- ISO-8859-4
- KOI8-R
- KS C 5601
- ISO-2022-JP
- UTF-7
- ISO-8859-8
- ISO-8859-5
- Windows-31J
- ISO-8859-6
- KOI8-U
- Windows-1258
- ANSI_X3.110-1983
- ISO-8859-16
- ISO-8859-3
- ISO-8859-13
- Big5 HKSCS
- Windows-949
- ISO-8859-10
- ISO-8859-14
- ISO-8859-11
- IBM850
Is there a technology missing?
Registered users can make a proposal to add a technology.
Do you want to stay informed about this survey?
Use our monthly technology survey 
RSS Feed.
Registered users can also subscribe to a monthly technology survey email.