The best open source alternative to OpenLayers is OpenFreeMap. If that doesn't suit you, our users have ranked more than 25 alternatives to OpenLayers and 11 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to OpenLayers are Leaflet, MapLibre, VersaTiles and Protomaps.
This software provides free, customizable map hosting from OpenStreetMap for apps and websites, with a completely open-source platform, no usage limits, registration, or user databases required. Supports self-hosting and public instance use with frequent planet data downloads.
Leaflet is a modern open-source JavaScript library for mobile-friendly interactive maps. It is developed by Vladimir Agafonkin with a team of dedicated contributors. Weighing just about 28 KB of JS code, it has all the features most developers ever need for online maps.
MapLibre GL is a community-led fork derived from mapbox-gl-js before their switch to a non-OSS license.
VersaTiles is a fully open-source stack for generating, distributing, and using map tiles from OpenStreetMap data, eliminating the need for combining multiple tools. Featuring a four-step, customizable process chain, it allows flexible integration of different tile sources, servers, and frontends.
GRASS GIS (Geographic Resources Analysis Support System) is an open source, free software (FOSS) Geographical Information System (GIS) with raster, topological, vector, image processing, and visualization functionality.
OpenMapTiles is a set of open-source tools for self-hosting of OpenStreetMap maps in more than 50 languages. It provides both raster as well as vector tiles, WMS and WMTS services for GIS programs, support for JavaScript viewers and mobile SDK.
Map3 is a decentralised map network that is impartial, secure and extremely robust. It is free from control, free to participate, free base map. It is built to be governed by the Map3 community where individuals and organisations can host Map3 nodes.
Visualize your local tech startup community on a custom Google Map. Host everything locally on your own server, or optionally show data from Startup Genome.
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