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OpenLayers

High-performance library for all kinds of web maps

Maps & GIS ★ 12.6k stars Medium setup BSD-2-Clause

OpenLayers is a powerful open-source JavaScript library for displaying map data in web browsers. It supports vector and raster layers, many projections, and advanced geospatial features.

Official siteSource code

Key features

  • Vector and raster layers
  • Many map projections
  • Advanced geospatial features
  • OGC service support

Strengths

  • Released under the BSD-2-Clause license
  • Mature project with 12.6k GitHub stars
  • Written in JavaScript
  • Tiny footprint — runs in 256 MB RAM

Is OpenLayers secure?

OSV.dev has no published security advisories for OpenLayers's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

OpenLayers replaces

Self-hosted Google Maps JavaScript API alternatives

Health badge

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SelfHostIndex: 94 · excellent

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   :alt: SelfHostIndex health score for OpenLayers
   :target: https://selfhostindex.com/app/openlayers/

The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

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