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.

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 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/

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.

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.

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.

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.

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.

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

geoStarsLib has functions for dealing with many geodesy-based problems found in positioning, pointing, and surveying situations. It is useful to determine absolute position on the earth, pointing vectors, coordinate transformations, and other functions.

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

It is a Client Application developed in Java that sends simultaneous OGC CSW requests to several metadata catalogues (ebRim or ISO 19115/19119 profile), processes the responses and shows them in a single web 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.

Geomajas is a web mapping GIS software with full vectorial editing capabilities, and support for custom attribute relation models in the browser. It has built-in support for any type of query, selection, filtering, snapping, printing, ...

This project is a reference, open source implementation of the coordinate conversion algorithms for the Polish geobotanical grid called ATPOL.

GPSBook is a software dedicated to manage display and manipulate GPS traces.

This project exists as a central meeting place for those wishing to share in-house developed applications and tools for local government (and related industries) in Australia.

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/

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.

The METAR Repository or simply metarr is a web-mapping service, capable of gathering and visualizing METARs (meteorological aviation routine weather reports). So aeronautical weather information becomes browseable on a map, even for "METAR-illiterate"

Important information!!! The Mapbender project moved under the roof of the Open Source Geospatial Foundation at http://www.osgeo.org/. All downloads and information are linked from the project site at http://www.mapbender.org/

The intention of this project is to provide a platform where users could generate a tour for cycling or hiking based on their defaults (e.g. length, meters of height, ...).

OSGB Web Map Tools is a set of software code and installation instructions that will enable web developers to produce dynamic mapping web sites using Ordnance Survey map data on the internet.

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