The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Package SDK (3 members)
- Pages using duplicate arguments in template calls (20 members)
- Pages with broken file links (2 members)
- Pages with too many expensive parser function calls (22 members)
- Paragraph Formatting Bulletin Board Code (3 members)
- Performance enhancements (2 members)
- Permissions (11 members)
- Protected redirects (1 member)
- Punctuation templates (1 member)
- Redirects from other templates (3 members)
- SMF Terminology (1 member)
- SMF Themes (7 members)
- SMF technical reference (1 member)
- SMF terminology (71 members)
- SMF terminology/es (6 members)
- SMF terminology/ru (2 members)
- SMF version differences (3 members)
- SSI (9 members)
- Sandbox (1 member)
- Set index article templates (1 member)
- Settings (1 member)
- Speedy deletion (0 members)
- Speedy deletion templates (4 members)
- Srpski/hrvatski/bosanski (2 members)
- Standardised user warning templates (1 member)
- Table and column templates (1 member)
- Team review requested (0 members)
- Template namespace templates (3 members)
- Templates (1 member)
- Terminaro de SMF (2 members)
- Terminology (1 member)
- Text Color Bulletin Board Code (6 members)
- Text Effects Bulletin Board Code (3 members)
- Text Formatting Bulletin Board Code (15 members)
- Tracking templates (1 member)
- Translatable templates (36 members)
- Types of Bulletin Board Codes (1 member)
- Typing-aid templates (1 member)
- Understanding SMF's source (3 members)
- Username internal link templates (1 member)
- Using SMF (6 members)
- Website building terms (0 members)
- Who uses SMF (2 members)
- Wikipedia formatting and function templates (2 members)
- Wikipedia message box parameter needs fixing (0 members)
- Wikipedia metatemplates (6 members)
- Wikipedia substituted templates (2 members)
- Wikipedia templates to be automatically substituted (1 member)
- Work in progress (30 members)
- Workaround templates (5 members)