The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- "What the Community is" Rows (4 members)
- $1 (1 member)
- 1.4 Block Palettes (8 members)
- 2.0 Block Palettes (10 members)
- 3rd Party Extensions (0 members)
- Account Request Process (7 members)
- Action Request (4 members)
- Album Covers (9 members)
- App Inventor Tutorials (1 member)
- Application Screenshots (39 members)
- April Fools' Day Images (161 members)
- April Fools' Day Pages (718 members)
- April Fools' Day Screenshots (61 members)
- April Fools Pages (8 members)
- Article Stubs (100 members)
- Articles (20 members)
- Articles about past versions (68 members)
- Articles about the past (251 members)
- Articles in Progress (7 members)
- Articles to Expand (110 members)
- Backdrops (7 members)
- BeetleBlocks Block Images (8 members)
- BeetleBlocks Images (6 members)
- Block Categories (21 members)
- Block Category Templates (25 members)
- Block Images (51 members)
- Block Palettes (3 members)
- Block Shape Images (27 members)
- Block Shapes (13 members)
- Block Templates (2 members)
- Block Types (19 members)
- Blocks (18 members)
- Boolean Blocks (26 members)
- Bot Shortcuts (8 members)
- Bots (5 members)
- Bugs (19 members)
- C++ Tutorials (2 members)
- C Blocks (11 members)
- C Tutorials (3 members)
- Cancelled (1 member)
- Cap Blocks (7 members)
- Categories to Reorganize (1 member)
- Characters (3 members)
- Chat Logs (6 members)
- Cloning (7 members)
- Clutter Images (6 members)
- Collaboration Logos (2 members)
- Collaborations (7 members)
- Community (32 members)
- Completed Scratch Wiki Projects (2 members)
