Leaflet is the leading open-source JavaScript library for mobile-friendly interactive maps. Weighing just about 42 KB of JS, it has all the mapping features most developers ever need.

This step-by-step guide will quickly get you started on Leaflet basics, including setting up a Leaflet map, working with markers, polylines and popups, and dealing with events.

It is chilling to see Leaflet being used for documenting Russia’s war crimes, factual reporting of the war and for coordination of humanitarian efforts across Europe.

May 18, 2025 · This release marks a major modernization of the Leaflet codebase. We’ve dropped support for Internet Explorer, removed legacy methods and polyfills, adopted modern standards like …

Learn the basics of Leaflet to create interactive maps and integrate them into your web applications effectively.

While Leaflet is meant to be as lightweight as possible, and focuses on a core set of features, an easy way to extend its functionality is to use third-party plugins.

Leaflet Quick Start Guide provides an introduction to creating interactive maps using the Leaflet JavaScript library.

This reference reflects Leaflet 1.9.4. Check this list if you are using a different version of Leaflet. For the new Leaflet 2.0.0-alpha references go to Leaflet 2.0.0-alpha

Leaflet on Mobile In this example, you’ll learn how to create a fullscreen map tuned for mobile devices like iPhone, iPad or Android phones, and how to easily detect and use the current user location.

Leaflet supports all of the GeoJSON types above, but Features and FeatureCollections work best as they allow you to describe features with a set of properties. We can even use these properties to …