Weird web tools that do one job well.
A curated list — every tool here was tried by a real human before being posted. Sites with obtrusive ads, or without at least a free demo, get rejected.
- ✓ Curated by hand, not scraped
- ✓ Tried by a real human first
- ✓ No obtrusive ads
- ✓ Free demo at minimum
2 tools matching “sandbox”
A falling-sand physics toy: pour sand, water, fire, and plants, then watch tiny ecosystems collide. Every pixel obeys simple rules; somehow the result feels alive.
Sculpt a tiny glass aquarium: add algae, fish, and snails, then watch a self-sustaining ecosystem tick along pixel by pixel. From the maker of Sandspiel. Quietly mesmerizing.