Geographic Information Systems (GIS) for web browsers.
Where can you go by train in 8h?
An interactive visualisation of climate model data across time and space.
New York Times.
Topi Tjukanov.
The Stanford Geospatial Network Model of the Roman World.
Browse historical places and search for old maps with timeline.
3D Globe Radio Tuner.
Every mountain, building and tree shadow in the world simulated for any date and time.
A leaflet-powered atlas showcasing Eurostat's statistics.
TeleGeography.
A WebGL-powered visualization of wind power. Capable of rendering up to 1 million wind particles at 60fps.
Helper page for finding bbox values from a map.
Render every single road in any city at once.
Create charts, maps, and tables.
Free web application for creating and editing fantasy maps.
A quick, simple tool for creating, viewing, and sharing spatial data.
Use this site to validate and view your GeoJSON.
Provides quick access to easy-to-use raster processing.
Tool for generating thematic maps.
A powerful open-source geospatial analysis tool for large-scale datasets.
An online application for thematic mapping.
Create colorful designs from maps and turn them into products.
Online editor for map data.
Tool for collaboratively exploring and annotating maps.
Free and open visual editor for Mapbox GL styles.
Visualizes elevation of any area on the map with filled area charts.
Drag-n-drop in-browser LAS/LAZ point cloud viewer.
Open-source alternative to ESRI's Story Map application.
Export 2D contour lines and 3D topography using open-source datasets.
Create maps with OpenStreetMap layers and embed them in your site.
A set of custom color palettes built on top of standards for color use on maps.
Chroma.js-powered tool for mastering multi-hued, multi-stop color scales.
Colour advice for maps, based on Dr. Cynthia Brewer's research.
Discrete color palettes for JavaScript.
JavaScript library for creating SVG patterns, designed for data visualization.
Tool optimized for tweaking, copying, and pasting colors in and out of JavaScript.
Large-scale WebGL-powered Geospatial Data Visualization. !GitHub stars
Calculate great circles routes as lines in GeoJSON or WKT format. !GitHub stars
Modern JavaScript API and web component library for building interactive 2D and 3D web apps for the browser.
Compact, modular JavaScript wrappers for the ArcGIS REST API that run in Node.js and modern browsers. !GitHub stars
Catalogue of GeoJSON tools. !GitHub stars
A JavaScript library for visualizing geospatial data and making thematic maps for the web. !GitHub stars
An open-source JavaScript library for world-class 3D mapping of geospatial data. !GitHub stars
A library for creating maps based on D3.js. !GitHub stars
Extended geographic projections. !GitHub stars
Voronoi diagrams and Delaunay triangulation for the sphere. !GitHub stars
Customizable map visualizations in one file. !GitHub stars
WebGL2 powered geospatial visualization layers. !GitHub stars
Interactive interface for browsing global, full-resolution satellite imagery.
2D Euclidean geometry classes, utilities, and drawing tools. !GitHub stars
Create and customise web maps showing Eurostat data using D3.js. !GitHub stars
A really fast static spatial index for 2D points and rectangles in JavaScript. !GitHub stars
A performant binary encoding for geographic data based on flatbuffers. !GitHub stars
For manipulating geometrical shapes, finding intersections, checking inclusion, calculating distance, transformations, and more. !GitHub stars
Lightweight Node.js isochrone server. !GitHub stars
Convert raster and vector geospatial data to various formats. !GitHub stars
A blazing fast JavaScript raster processing engine. !GitHub stars
Geobuf is a compact binary encoding for geographic data. !GitHub stars
Merge multiple GeoJSON files into one FeatureCollection. !GitHub stars
A highly efficient JavaScript library for slicing GeoJSON data. !GitHub stars
Library to provide basic geospatial operations. !GitHub stars
A JavaScript library for doing geometry. !GitHub stars
The GeoPackage JavaScript library provides the ability to read GeoPackage files. !GitHub stars
Encoding geospatial data in Apache Parquet. !GitHub stars
Parse TIFF files for visualization or analysis. !GitHub stars
Provides several GIS operations for use with geojson properties. !GitHub stars
This library is a convenience wrapper around the three-globe plugin, using ThreeJS/WebGL for 3D rendering. !GitHub stars
Geospatial processing service.
Google Maps API for JavaScript.
A package for visualizing gridded data. !GitHub stars
Build web applications with feature-rich and customizable HERE maps.
A Three.js-based framework written in JavaScript/WebGL for visualizing 3D geospatial data. !GitHub stars
JavaScript Topology Suite. !GitHub stars
A JavaScript toolkit for connecting incompatible spatial APIs. !GitHub stars
The leading open-source JavaScript library for mobile-friendly interactive maps. !GitHub stars
Simple-to-use library based on Leaflet 1.4.x. It allows you to show wind maps. !GitHub stars
JavaScript library that uses WebGL to render interactive maps from vector tiles. !GitHub stars
It originated as an open-source fork of mapbox-gl-js, before their switch to a non-OSS license in December 2020. !GitHub stars
An open-source JavaScript library for integrated 2D/3D maps. !GitHub stars
JavaScript math library focused on Geospatial and 3D use cases. !GitHub stars
A high-performance, feature-packed library for creating interactive maps on the web. !GitHub stars
Drag-n-drop In-browser LAS/LAZ point cloud viewer.
WebGL point cloud viewer for large datasets.
Rezt, Austria LIDAR viewer.
Transform coordinates from one coordinate system to another. !GitHub stars
RBush is a high-performance JavaScript library for 2D spatial indexing. !GitHub stars
An SVG mapping component library for React, built on top of d3-geo. !GitHub stars
A repository of custom scripts to be used with Sentinel Hub.
Download and process satellite imagery using Sentinel Hub services.
Awesome Spectral Indices for the Google Earth Engine JavaScript API.
Makes it possible to use SpatiaLite functionality in JavaScript. !GitHub stars
Split a quantitative dataset into classes for thematic mapping. !GitHub stars
A very fast JavaScript library for geospatial point clustering. !GitHub stars
WebGL map rendering engine for creative cartography. !GitHub stars
TerriaJS is a library for building rich, web-based geospatial data explorers. !GitHub stars
Point cloud data loader.
Convert GeoJSON to TopoJSON for use in D3 maps. !GitHub stars
A JavaScript library for spatial analysis. !GitHub stars
A modest library for moving between Well-Known Text (WKT) and various framework geometries. !GitHub stars
Animated 3D city maps based on Leaflet. !GitHub stars
Pan-European address data with geocoding and reverse-geocoding.
Official French geographical data API.
Over 380,000 open datasets.
Basemaps, Geocoding, Places, routing, and GeoEnrichment.
An awesome repository full of open datasets from an abundance of different categories.
Converts British National Grid to latitude and longitude.
Air Quality, Weather, Pollen, and Environmental data.
Global elevation tiles.
Copernicus satellite imagery download.
Database of city, state, and country data.
1 arc-minute global relief model of Earth's surface.
Population figures in grid cells.
Location of postal codes across Europe.
Links to over 500 sites providing freely available geographic datasets.
Geospatial data discovery and management platform.
Geospatial services such as maps, geocoding, and routing.
The world's largest open, free political boundaries database.
Reverse geocoding, forward geocoding, and geoparsing API.
Supports placename lookup and reverse geocoding.
European Commission data source for administrative regions and boundaries.
Open access to biodiversity data.
Global open climate data.
Open source database of power plants.
Solves various vehicle routing problems.
Locations of healthcare services in Europe.
Consistent hydrographic data for global applications.
Platform for animal tracking data.
Search, discover, visualize, refine, and access NASA Earth Observation data in your browser with Earthdata Search.
Browse and download satellite data imagery.
Free vector and raster map data.
Global network performance metrics.
Public registry of electric vehicle charging locations.
ISS location and number of people in space.
British postcodes with geospatial data.
High-resolution topography data and tools.
Global weather forecast API.
Open service for accessing licensed imagery.
Largest open-source air quality data platform.
Forward and reverse geocoding API using open data.
Free OpenStreetMap Vector Tiles.
Directions, isochrones, and geocoding services.
Retrieve live airspace information.
Free, world-wide geographic data set.
Retrieve OpenStreetMap data via Overpass API.
Open Topography Data API.
Retrieve OpenStreetMap data.
A collective list of free APIs for use in software and web development.
Free weather radar and satellite data API.
Get country information via a RESTful API.
Repository of custom scripts for Sentinel Hub.
Provides sunset and sunrise times for locations.
Geocoding, routing, traffic, and more.
Query and order satellite images and more.
Search earthquake data by various parameters.
Converts 3-word addresses to coordinates.
Natural Earth's vector data as TopoJSON.
Free access to global development data.
Open access spatial demographic datasets.
World Resources Institute.
A very very cool icon font set for use with GIS and spatial analysis tools.
The Marker Icon API lets you create beautiful icons and use them as Map Markers.
A set of more than 1000 free and customizable icons to use as placemarks for your POI (Point of Interests) locations on your maps.
Over 2,990 glyphs in a single font file with a wide range of design variants.
Chris Marx.
Benjamin Schmidt.
Nicolas Lambert.
Stephanie Tuerk.
Karim Douieb.
D3.
Adrián Blanco.
Julien Gaffuri.
Kyle Barron.
Kyle Barron.
Nicolas Lambert.
Joe Davies.
Nicolas Lambert.
ObservableHQ.
Mike Bostock.
Larsvers.
Julien Gaffuri.
Daniel Kao.
Karim Douieb.
Joe Davies.
Joe Davies.
D3.
Robert Roth, Carl Sack, Gareth Baldrica-Franklin, Yuying Chen, Rich Donohue, Lily Houtman, Tim Prestby, Robin Tolochko, Nick Underwood.
Cynthia A. Brewer.
Claus O. Wilke.
A collection of visualization techniques for geospatial network data.
Kenneth Field.