Open Source JavaScript Mapping Software

GeographicLib is a small C++ library for: geodesic and rhumb line calculations; conversions between geographic, UTM, UPS, MGRS, geocentric, and local cartesian coordinates; gravity (e.g., EGM2008) and geomagnetic field (e.g., WMM2020) calculations.

Seeker is an open source project that demonstrates how to obtain precise location information from devices using social engineering and web-based techniques. The tool sets up a phishing page that asks for location permissions, allowing GPS and other device data to be shared if the user consents. It can capture latitude, longitude, accuracy, altitude, direction, and even speed, with results displayed in a terminal. The project supports both manual deployment and tunneling services like Ngrok for external access. While primarily intended as an educational resource on security awareness, it highlights the risks of exposing geolocation data online. Its simplicity and effectiveness have made it a popular project in cybersecurity learning circles.

Open Nautical Charts offers free seacharts for everybody. This charts are usable (offline) with several ship-plotters and Navigation-equipement on board. kap, Png, Jpr, png-cal, For user with Open CPN or SeaClear and other.

OpenLayers makes it easy to put a dynamic map in any web page. It can display map tiles, vector data and markers loaded from any source. OpenLayers has been developed to further the use of geographic information of all kinds. It is completely free, Open Source JavaScript, released under the 2-clause BSD License (also known as the FreeBSD). Pull tiles from OSM, Bing, MapBox, Stamen, and any other XYZ source you can find. OGC mapping services and untiled layers also supported. Render vector data from GeoJSON, TopoJSON, KML, GML, Mapbox vector tiles, and other formats. Leverages Canvas 2D, WebGL, and all the latest greatness from HTML5. Mobile support out of the box. Build lightweight custom profiles with just the components you need. Style your map controls with straight-forward CSS. Hook into different levels of the API or use 3rd party libraries to customize and extend functionality.

A web based Metadata Catalog Server for data description and discovery. Supports both generic and geospatial data discovery. It implements international standards (e.g. ISO19115/19139/19119, ISO19115-3, DCAT-AP, CSW 2.0, OGC API Records). It originates from the United Nations and is used by many governments as geoportal software. Active development and discussion takes place on GitHub and OSGeo Discourse. You can also connect directly with the companies supporting the development. Source code available on github https://github.com/geonetwork/

Mapbox GL JS is a JavaScript library that uses WebGL to render interactive maps from vector tiles and Mapbox styles. It is part of the Mapbox GL ecosystem, which includes Mapbox Mobile, a compatible renderer written in C++ with bindings for desktop and mobile platforms. Mapbox GL JS is part of the cross-platform Mapbox GL ecosystem, which also includes compatible native SDKs for applications on Android, iOS, macOS, Qt, and React Native. Mapbox provides building blocks to add location features like maps, search, and navigation into any experience you create. To get started with GL JS or any of our other building blocks, sign up for a Mapbox account. In addition to GL JS, this repository contains code, issues, and test fixtures that are common to both GL JS and the native SDKs. Mapbox GL JS v2 enables 3D mapping with elevated terrain, customizable skies and atmospheric lighting, a new camera, and performance enhancements.

Leaflet is a leading open source JavaScript library for creating interactive, mobile-friendly maps. Leaflet is light at just about 38 KB, but is already fully equipped with all the mapping features you could need. Leaflet is simple but efficient. It doesn’t try to do everything for everybody, rather it focuses on making the basic things work perfectly. It comes ready with exceptional layering tools, customization features such as pure CSS3 popups and controls, map controls and more right out of the box, and works on all major desktop and mobile platforms. Leaflet also comes with a range of interaction features, and can be extended with an abundance of great plugins.

A node.js based Vector Tile to Braille and ASCII renderer for xterm-compatible terminals. If you're on Windows, use the open source telnet client PuTTY to connect. Use your mouse to drag and zoom in and out! Discover points of interest around any given location. Highly customizable layer styling with Mapbox Styles support. Connect to any public or private vector tile server. Or just use the supplied and optimized OSM2VectorTiles based one. Work offline and discover local VectorTile/MBTiles. Compatible with most Linux and OSX terminals. Highly optimized algorithms for a smooth experience. 100% pure JavaScript! Arrows up, down, left, right to scroll around. Press a or z to zoom in and out. Press c to switch to block character mode, and press q to quit. If your terminal supports mouse events you can drag the map and use your scroll wheel to zoom in and out.

Earth Enterprise is the open source version of Google Earth Enterprise (GEE), a powerful geospatial application suite that enables organizations to build and host custom 3D globes and 2D maps using their own imagery and data. Unlike Google Maps or Google Earth, Earth Enterprise does not include Google’s proprietary imagery but instead provides the tools needed to manage and visualize private geospatial datasets. The system is composed of three main components: Fusion, which processes and integrates imagery, vector, and terrain data into unified map layers; Server, which hosts the resulting globes or maps via Apache or Tornado-based web servers; and Client, which includes the Google Earth Enterprise Client (EC) for 3D visualization and the Google Maps JavaScript API V3 for 2D viewing. Designed for enterprise, research, and government use, it allows for secure, scalable deployment of geospatial visualization systems within private infrastructure.

OpenSeaMap's goal is to add nautical and tourism information a sailor could be interested in to OSM (OpenStreetMap) and to present it in a pleasing way. Those include beacons, buoys and other seamark and port information.

OpenGTS (Open Source GPS Tracking System) is a full featured web-based GPS tracking system for your fleet of vehicles. It supports OpenLayers and other map providers, detail/summary Reporting, and various GPS tracking devices.

Geoportal Server is a standards-based, open source product that enables discovery and use of geospatial resources including data and services.

Search for local businesses and services, view maps, and calculate driving directions on Google Maps. Now avaible at Windows app.

I made GPX Viewer to look back at my rides and walks: a good map, coloured climbs, honest numbers. For Mac and Windows. - Opens GPX from bike computers, watches and phones - Official aerial and topographic maps from Luxembourg, Belgium, France, the Netherlands, Switzerland, Austria and Germany, plus OpenStreetMap, OpenTopoMap and CyclOSM (Apple Maps on Mac). Thunderforest and Esri with your own key - Elevation profile coloured by gradient; speed, heart rate, cadence, power and temperature graphs; stats for any section - Playback, route drawing, GPX editing with undo - Official terrain, 3D relief, route surface analysis - File Info: which device and app recorded a file No account, no tracking, no ads. Your files stay on your computer. Downloads: macOS ARM64 (macOS 13 to 27, Liquid Glass on 26+), macOS X64 (10.13 to 12), Windows x64 installer (Windows 10 1809+ or 11). Unsigned: confirm on first launch. Free, MIT License. GPX only. See the Legal Notice tab.

A PHP and JavaScript Web mapping framework and demo application for MapServer (see http://mapserver.gis.umn.edu) based on MapScript/PHP.

Musmap is a web interface to UMN mapserver. It provides users and profiles management, advanced queries and selections, automatic decodification of columns with joins, easy-to-use configuration (colors, ...)... and so on.

(Former project name was Geo5.) It was never easier to share your position with friends. Just open http://jfellow.net/geo5/ and see you and your friends on a map. (http://jfellow.net/geo5/ is a test server. You can download and install your own server. It's open source.) - Build groups, all group members see each other automatically. - No registration, no installation, no spyware. - Advanced: Tracks, routing (planned). It's about privacy. Reclaim the internet from authorities and companies!

Website plugin that plots visitors counts from various cities on a Google Earth element. This product includes GeoLite data created by MaxMind, available from http://maxmind.com/

A web-based maintenance management system for water and wastewater networks. Allows to store customer complaints and issue workorder sheets. Rather than using street names, maps and landmarks are used for navigation.

This project provides and open source implementation of HELD and related specifications. A HELD client and Location Information Server are included.

A collection of Dokuwiki plugins that will enable the user to spatially enable and use the wiki, currently we have: openlayersmap (a map), geotag (ways of geotagging a page)

GeoKettle is a powerful, metadata-driven spatial ETL (Extract, Transform and Load) tool dedicated to the integration of different data sources for building and updating geospatial databases, data warehouses and services.

geolocate is a front-end java program that works with google maps to provide dynamic maps to users. Combined with the flexibility of XML and the power of javascript, users can see various relationships on their map to draw conclusions.

Map-Fu is a full-featured web mapping interface written using PHP/Javascript that can be modified and used as part of a custom web mapping application. It is designed to function as part of an open source mapping stack including UMN Mapserver.

This Programm gets the Data from Openstreetmap and converts it to an Layerd SVG File for Inkscape. All conversion is don via a stylesheet. Here is defined what schould be shown and how it is displayed. You can get various styled Maps from the same Data with different sytelsheets. The Stylesheets are Javascript files and easy cusomizeable. (You should have a bit knowledge of OSM tags then it will be easyer to understand)