OpenLayers 3 is the complete rewrite of the OpenLayers 2.x mapping library, targeting modern features of HTML5 and CSS3. It is not compatible with OpenLayers 2. OpenLayers is completely free and open source, having been released under the 2-clause BSD License.
OpenLayers 3
OpenLayers 3 is a high-performance, feature-packed library for creating interactive maps on the web.
Beginners may wish to consult the following resources:
- OpenLayers API Documentation Go to 'API' page (changes for each version !)
- OpenLayers Examples Go to 'Examples' page (changes for each version !)
- OpenLayers Workshop
- Codepen examples
Usual search keywords are 'OpenLayers' and 'ol'.
Source code can be found on GitHub at https://github.com/openlayers/openlayers.
Tag usage
Use of the openlayers-3 tag was encouraged by OpenLayers developers for questions specific to OpenLayers 3, but it no longer is. The openlayers tag will probably get more attention.