The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Article management templates (1 member)
- Article stubs (43 members)
- Blog posts (0 members)
- Browse (11 members)
- Candidates for deletion (0 members)
- Character Images (8 members)
- Characters (30 members)
- Disambiguations (0 members)
- Episodes (12 members)
- Events (2 members)
- Female Characters (2 members)
- Groups (4 members)
- Help (0 members)
- Images (7 members)
- Manga (11 members)
- Manga Cover Images (6 members)
- Media (2 members)
- Pages using ISBN magic links (10 members)
- Peter Grill and the Philosopher's Time (7 members)
- Races (3 members)
- Stub (0 members)
- Template documentation (31 members)
- Templates (44 members)
- Templates/Context-link (6 members)
- Templates/Infobox (9 members)
- Templates/Navbox (1 member)
- Templates/Notice (1 member)
- Templates/Quote (2 members)
- Terminology (7 members)
- Theme Images (3 members)
- Unwanted Harem (9 members)