Unicode Utilities: Confusables

Confusable characters are those that may be confused with others (in some common UI fonts), such as the Latin letter "o" and the Greek letter omicron "ο". Fonts make a difference: for example, the Hebrew character "ס" looks confusingly similar to "o" in some fonts (such as Arial Hebrew), but not in others. See also unaccented Latin Characters..

The data for confusables and restrictions is from UTS39. You can suggest additions or changes to the Unicode data for future versions of that standard.

• The confusables data is in the confusablesSummary file.
• The restricted ID data is the xidmodifications file.
• The "UTS46+UTS39" test checks mixed scripts according to the levels in Unicode Security Considerations (proposed update), such as "aα", "a٠b", or "Ꭰa1". It also checks for Hans vs Hant (万丟); for different number systems(1٦, ٦۶); and for duplicate non-spacing marks (ä̈).

For more information on the use of the data, see proposed updates Unicode Security Mechanisms and Unicode Security Considerations.

The restrictions are purely on a character level. For a more detailed view, see idna.

Caveats

The Unicode data is designed for testing, not enumerating, so not all combinations are generated in this demo; In particular, where a character is confusable with a sequence, not all combinations are generated.

Fonts and Display. If you don't have a good set of Unicode fonts (and modern browser), you may not be able to read some of the characters. Some suggested fonts that you can add for coverage are: Noto Fonts site, Unicode Fonts for Ancient Scripts, Large, multi-script Unicode fonts. See also: Unicode Display Problems.

Version 3.9; ICU version: 72.0; Unicode/Emoji version: 15.0;