Social Good
Public Toilet Finder
Find the nearest clean, accessible public toilet with ratings
Beginner8h1–2
LeafletNext.jsPostgres
17/20Wheelchair Route Finder
Find routes that avoid stairs, steep slopes and broken pavements.
Intermediate18h2–3 people17/20 fit
Build Wheelchair Route Finder for wheelchair users in ~18h with 2–3 people. Stack: Leaflet + OpenStreetMap + Node.js.
Why it wins: Clear accessibility impact.
Build flow
01 · Problem
Normal maps send wheelchair users into dead ends.
02 · Solution
Use open map data plus crowd reports of barriers to compute accessible routes and let users report new obstacles.
03 · Build
- 1Load map data
- 2Add barrier layer
- 3Compute routes
- 4Collect reports
04 · Demo
Compare a normal route with the accessible one.
MVP checklist
- Accessible routing
- Barrier reports
- Slope data
- Offline map
Tech stack
| Tech | Role | |
|---|---|---|
| Leaflet | Interactive maps | UI |
| OpenStreetMap | Tooling | Tool |
| Node.js | Backend runtime | Backend |
Reference repos
Open-source projects you can build on. Links checked 2026-10-31.
Related ideas
More Social GoodSocial Good
Crowdsourced Venue Accessibility Ratings
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Shelter Bed Availability Board
See which shelters have free beds right now
Intermediate14h2–3Next.jsSupabaseLeaflet17/20