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Leaflet/Leaflet

🍃 number one JavaScript library for interactive maps 🇺🇦

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README.md

Leaflet was created in 2010 by [Volodymyr Agafonkin](https://agafonkin.com), a Ukrainian living in Kyiv.

Russia's full-scale invasion of Ukraine began in February 2022 and is still going. Russian troops have killed tens of thousands of civilians and committed mass war crimes. Missiles and drones hit Kyiv and other Ukrainian cities day and night.

Leaflet is used for [documenting Russia's war crimes](https://ukraine.bellingcat.com/), [tracking the front line](https://deepstatemap.live/) and [finding humanitarian aid](https://ukraine.servicesadvisor.net/). The future of Ukraine is the future of Leaflet.

If you'd like to help, donate to [Come Back Alive](https://savelife.in.ua/en/) or another charity listed on [StandWithUkraine](https://stand-with-ukraine.pp.ua), and keep asking your government to support Ukraine and pressure Russia. Just don't be silent.

Yours truly,<br>
Leaflet maintainers

---

Leaflet is the leading open-source JavaScript library for **building powerful interactive maps**.

Weighing just about 40 kB of gzipped JS plus 2.4 kB of gzipped CSS code, it has all the mapping [features][] most developers ever need.

Leaflet is designed with *simplicity*, *performance* and *usability* in mind.
It works efficiently across all major desktop and mobile platforms out of the box,
taking advantage of modern browser features.
It can be extended with a huge amount of [plugins][],
has a beautiful, easy to use and [well-documented][] API
and a simple, readable [source code][] that is a joy to [contribute][] to.

For more info, docs and tutorials, check out the [official website][].<br>
For **Leaflet downloads** (including the built main version), check out the [install page][].

We're happy to meet new contributors.
If you want to **get involved** with Leaflet development, check out the [contribution guide][contribute].
Let's make the best mapping library that will ever exist,
and push the limits of what's possible with online maps!

[![CI](https://github.com/Leaflet/Leaflet/actions/workflows/main.yml/badge.svg)](https://github.com/Leaflet/Leaflet/actions/workflows/main.yml) [![minzipped size](https://img.shields.io/bundlejs/size/leaflet?label=min%2Bgzip)](https://esm.run/leaflet) [![Simply Awesome](https://img.shields.io/badge/simply-awesome-2ebc4f.svg)](https://github.com/mourner/projects)

[features]: https://leafletjs.com/#features
 [plugins]: https://leafletjs.com/plugins.html
 [well-documented]: https://leafletjs.com/reference.html "Leaflet API reference"
 [source code]: https://github.com/Leaflet/Leaflet "Leaflet GitHub repository"
 [contribute]: https://github.com/Leaflet/Leaflet/blob/main/CONTRIBUTING.md "A guide to contributing to Leaflet"
 [official website]: https://leafletjs.com
 [install page]: https://leafletjs.com/install.html

Repository info

Default branch: main
Latest version: v1.9.4
Created: 22/09/2010
Last activity: 13/11/2026
License: BSD-2-Clause
Open issues: 230
Watchers: 878

Topics

javascript leaflet maps

Contributors

mourner

4k contributions

IvanSanchez

443 contributions

dependabot[bot]

434 contributions

danzel

301 contributions

yohanboniface

210 contributions