The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Boss Portraits (1 member)
- Bosses (7 members)
- Candidates for deletion (2 members)
- Candidates for speedy deletion (0 members)
- Challenges (1 member)
- Chapters (1 member)
- Characters (1 member)
- Citation needed (0 members)
- Cleanup (0 members)
- Community (4 members)
- Copyright templates (10 members)
- Devil's Harvest (0 members)
- Devil's Harvest Wiki (7 members)
- Disambiguations (0 members)
- Documentation templates (49 members)
- Formatting templates (22 members)
- Front page sections (7 members)
- Hidden categories (0 members)
- Images (1 member)
- Images needing improvement (0 members)
- Infobox templates (1 member)
- Item Sprites (1 member)
- Items (3 members)
- Legal notices (3 members)
- Media (2 members)
- Monster Templates (1 member)
- Monsters (1 member)
- Navigation bar templates (2 members)
- Navigation templates (2 members)
- Notice templates (13 members)
- Pages to be merged (0 members)
- Pages to be moved (0 members)
- Pages with broken file links (3 members)
- Pickups (1 member)
- Stubs (0 members)
- Templates (19 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- The Binding of Isaac: Probirth (12 members)
- The Binding of Isaac: Probirth Wiki (5 members)
- Transformations (1 member)
- Trinket Sprites (1 member)
- Trinkets (2 members)
- Unattributed files (0 members)
- User groups (12 members)
- Videos (0 members)
- Wiki maintenance (14 members)
- Wiki skin images (6 members)