From Wikipedia, the free encyclopedia
Original author(s)MetaCarta
Developer(s)The OpenLayers Dev Team
Initial releaseJune 26, 2006 (2006-06-26)
Stable release
9.0.0[1] Edit this on Wikidata / 25 February 2024; 44 days ago (25 February 2024)
Written inJavaScript
PlatformWeb browser
TypeWeb mapping

OpenLayers is an open-source (provided under the 2-clause BSD License[2]) JavaScript library for displaying map data in web browsers as slippy maps. It provides an API for building rich web-based geographic applications similar to Google Maps and Bing Maps.


OpenLayers supports GeoRSS, KML (Keyhole Markup Language), Geography Markup Language (GML), GeoJSON and map data from any source using OGC-standards as Web Map Service (WMS) or Web Feature Service (WFS).


The library was originally based on the Prototype JavaScript Framework.

OpenLayers was created by MetaCarta after the O'Reilly Where 2.0 conference[3] of June 29–30, 2005,[4] and released as open source software before the Where 2.0 conference of June 13–14, 2006, by MetaCarta Labs. Two other open-source mapping tools released by MetaCarta are FeatureServer and TileCache. Since November 2007, OpenLayers has been an Open Source Geospatial Foundation project.[5]


  1. ^ "Release 9.0.0". 25 February 2024. Retrieved 22 March 2024.
  2. ^ "OpenLayers: Home". Retrieved 7 December 2012.
  3. ^ "History – OpenLayers 2". Archived from the original on 2007-10-18.
  4. ^ "Conferences Header - ML Redesign".
  5. ^ "OpenLayers Achève sa Phase d'Incubation -". Archived from the original on 2009-03-31. Retrieved 2008-07-01.

External links[edit]