Leaflet is a popular open-source JavaScript library used for creating interactive maps. It allows developers to easily add maps to their websites and applications, making it simple to display geographical data. With its user-friendly interface, Leaflet supports various map layers, markers, and pop-ups, enabling users to customize their maps according to their needs. One of the key features of Leaflet is its lightweight design, which ensures fast loading times and smooth performance. It works well with different mapping services, such as OpenStreetMap and Mapbox, allowing users to choose the best source for their mapping needs. Overall, Leaflet is a powerful tool for anyone looking to incorporate maps into their projects.