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 …

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.

A simple step-by-step guide that will quickly get you started with Leaflet basics, including setting up a Leaflet map (with OpenStreetMap tiles) on your page, working with markers, polylines …

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.

GeoJSON is a very popular data format among many GIS technologies and services — it's simple, lightweight, straightforward, and Leaflet is quite good at handling it.

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.

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

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