Observable: Data notebooks and dashboards with D3 and Plot maps. Plotly: Interactive maps in Python, R and JavaScript charts.
| Observable | Plotly | |
|---|---|---|
| Category | Geospatial Data Visualization | Geospatial Data Visualization |
| Pricing model | Freemium | Open source |
| Starts at | See website | Free |
| Free tier | Free for public notebooks | — |
| Open source | No | Yes |
| Software licence | — | MIT |
| API | — | — |
| Platforms | Web, JavaScript | Python, R, JavaScript |
| Made by | — | — |
| Commercial use | Check terms | Check terms |
| Export / print images | Check terms | Check terms |
| Offline / caching | Check terms | Check terms |
| Visits from MapTools | 2 | 1 |
| Visit | Visit |
Observable features
- Reactive notebooks
- Observable Plot geo marks
- D3 projections
- Data apps framework
Plotly features
- Choropleth and scatter maps
- Tile maps
- Dash apps
- Python, R and JS
Summary based on public information. Check each provider's current pricing and terms.