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openlayers.org favicon

Build interactive maps for the web easily

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OpenLayers is a powerful open-source library for building interactive maps and geospatial applications on the web, with plenty of examples and docs.

mapshaper.org favicon

Edit and simplify map data in your browser

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Edit, simplify, and convert map data files right in your browser. Mapshaper makes working with geographic data easy, fast, and accessible online.

openrailwaymap.org favicon

View railways worldwide on an interactive map

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Explore detailed railway maps worldwide with OpenRailwayMap, an interactive tool based on OpenStreetMap for rail infrastructure enthusiasts and planners.

opentopomap.org favicon

View detailed topographic maps for outdoor trips

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Explore topographic maps based on OpenStreetMap data for hiking, biking, and outdoor adventures. Available in German for easy navigation and planning.

geojson.org favicon

Learn and use the GeoJSON format for mapping

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GeoJSON.org explains and documents the GeoJSON format, helping you understand and use geographic data structures for mapping and GIS projects.

geonode.org favicon

Build and share geospatial data online

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GeoNode helps you create, manage, and share geospatial data on the web, making it easy to build and maintain geospatial information systems (GIS).

spatialreference.org favicon

Find coordinate systems for your mapping projects

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Browse and find coordinate reference systems (CRS) for mapping and GIS projects. Access codes, data, and tools for accurate spatial referencing.

geoserver.org favicon

Share and manage geospatial data online

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GeoServer lets you publish, share, and manage geospatial data online with open standards. Easily connect and serve spatial data from various sources.

mapit.mysociety.org favicon

Match locations to UK administrative areas instantly

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MapIt lets you match UK postcodes or map points to local government and administrative areas, making it easy to connect locations with boundaries.

mapnik.org favicon

Render custom maps with powerful GIS tools

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Mapnik is an open-source GIS toolkit for high-quality map rendering and geospatial data processing using C++, Python, or Node.js.

proj.org favicon

Transform geospatial coordinates with ease

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Explore PROJ's documentation to learn about powerful open-source tools for transforming geospatial coordinates and cartographic projections.

deegree.org favicon

Open source tools for geospatial data management

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deegree is open source software for managing, visualizing, and sharing geospatial data using open standards for spatial data infrastructures.

onegeology.org favicon

Explore global geology data and interactive maps

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OneGeology connects global geological surveys, offering access to worldwide geoscience data, maps, and resources for professionals and enthusiasts.

Worldwide Sangis.org Alternatives

gpsvisualizer.com favicon

Turn GPS data into custom interactive maps

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Create custom maps and profiles from GPS data, addresses, or coordinates with this free online tool—perfect for visualizing geographic info easily.

qldglobe.information.qld.gov.au favicon

Explore interactive Queensland maps online

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Queensland Globe lets you explore interactive maps and location data for Queensland, Australia, offering easy access to a wide range of geographic information.

gaia-gis.it favicon

Explore and visualize spatial data online

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GaiaTool CGI is an open source GIS platform for exploring, managing, and visualizing spatial data online. Site content is primarily in Italian.

topolynx.com favicon

Measure and navigate maps on any device

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Create, measure, and navigate maps with professional GIS software for desktop, mobile, and web—ideal for surveyors and fieldwork users.

batchgeo.com favicon

Turn spreadsheets into interactive maps instantly

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Create interactive maps from your own address lists or spreadsheets. BatchGeo lets you quickly visualize and share location data with easy pin mapping.

nauticalcharts.noaa.gov favicon

Access official U.S. nautical charts and navigation tools

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Explore official U.S. nautical charts, navigation tools, and hydrographic data from NOAA’s Office of Coast Survey for safe marine travel and planning.

heywhatsthat.com favicon

See which peaks are visible from your location

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Find out which mountain peaks and summits are visible from any spot worldwide using interactive maps—perfect for hikers, travelers, and outdoor fans.

norgeskart.no favicon

Discover and create detailed Norwegian maps

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Explore detailed Norwegian maps with property info, hiking and cycling routes, sea charts, and location data. Create and share your own custom maps.

geoapify.com favicon

Create custom maps and geolocation apps easily

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Geoapify helps you build location-based apps with maps, geocoding, routing, and APIs. Access powerful tools for address search and route optimization.

mapitgis.com favicon

Capture and measure locations on your Android device

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Mapit GIS is a mobile app for Android that lets you capture locations, measure distances and areas, and manage spatial data easily using your phone.

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