This module converts a limited set of characters between halfwidth and fullwidth forms.
<nowiki>{{#invoke:convert character width|full|some text 0123456789}}</nowiki>
→<nowiki>{{#invoke:convert character width|half|some text 0123456789}}</nowiki>
→Care should be taken when using this module with Hangul and katakana; as of September 2013 there is only limited support for katakana and no support for Hangul. Some of the more obscure punctuation characters are also not yet supported.
The character data used by the module is located at . Fixes and updates to the data set are welcomed enthusiastically.