D3 (d3-geo): Map projections and SVG maps for custom data graphics. StoryMapJS: Free tool to tell stories along a sequence of map locations.
| D3 (d3-geo) | StoryMapJS | |
|---|---|---|
| Category | Map Libraries & SDKs | Online Map Makers |
| Pricing model | Open source | Free |
| Starts at | Free | Free |
| Free tier | — | — |
| Open source | Yes | Yes |
| Software licence | ISC | MPL-2.0 |
| API | — | — |
| Platforms | JavaScript | Web |
| Made by | — | Northwestern University Knight Lab |
| Commercial use | Allowed | Check terms |
| Export / print images | Allowed | Check terms |
| Offline / caching | Allowed | Check terms |
| Visits from MapTools | 1 | 7 |
| Visit | Visit |
D3 (d3-geo) features
- Many map projections
- SVG and canvas rendering
- TopoJSON support
- Full design control
StoryMapJS features
- Slide-by-slide map stories
- Images and media per slide
- Gigapixel image mode
- Embeddable
Summary based on public information. Check each provider's current pricing and terms.