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OpenLayers logo.svg
OpenLayers screenshot.png
Initial release June 26, 2006 (2006-06-26)
Stable release 2.8 / 2009-6-22; 14 years ago
Written in JavaScript
Platform Web browser
Type Web mapping
License BSD-style

OpenLayers is an open source (provided under a modified BSD license) JavaScript library for displaying map data in web browsers. It provides an API for building rich web-based geographic applications similar to Google Maps and MSN Virtual Earth. The library includes components from the Rico JavaScript library and the Prototype JavaScript Framework.

OpenLayers is used by OpenStreetMap project for its "Slippy Map" map interface.


OpenLayers can communicate through several protocols


OpenLayers was created by MetaCarta after the O'Reilly Where 2.0 conference[1] on June 29-30, 2005,[2] and released as open source software before the Where 2.0 conference on June 13-14, 2006, by MetaCarta Labs. MetaCarta maintains an active role in supporting and managing the project. Two other open source mapping tools released by MetaCarta are FeatureServer and TileCache. Since November 2007 OpenLayers is an Open Source Geospatial Foundation project[3].


Commercial (but free for public use)

Open Source


External links