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 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

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.

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

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.

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.

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.

A WMS image is defined by the coordinates of its corners - a calculation that Leaflet does under the hood. TMS stands for tiled map service, and is a map tiling standard more focused on web maps, …