Recommendation
Choose Leaflet for conventional interactive web maps that value a small, approachable API. Consider OpenLayers for more elaborate GIS interactions, projections and data-source needs.
Validate
Both libraries need separate mapping data or tiles. Verify projection assumptions, licensing and mobile performance with the map layers you will actually use.
Structured comparison
| Criterion | Leaflet ↗ | OpenLayers ↗ |
|---|---|---|
| Purpose | Build lightweight interactive web maps. | Create advanced interactive map applications in JavaScript. |
| Pricing model | open-source | open-source |
| Deployment | Self-hosted library | Self-hosted library |
| Best for | Web apps needing interactive maps with flexible external tile/data sources. | Complex browser mapping interfaces and geospatial displays. |
| Limitations | Requirements involving fully managed routing and geocoding in one product. | Simple projects where a smaller mapping abstraction will suffice. |
Editorial note
Examples are starting points, not production security audits. Confirm dependencies, versions and pricing using linked vendor documentation.