The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Internationalization templates (2 members)
- Lua-based templates (3 members)
- Lua String-based templates (2 members)
- Pages with broken file links (17 members)
- Pages with non-numeric formatnum arguments (3 members)
- Pages with script errors (20 members)
- Scribunto modules with errors (15 members)
- TemplateStyles stylesheets with errors (1 member)
- Workaround templates (2 members)