protomaps-leaflet is a lightweight vector tile renderer and labeling library for Leaflet that provides an alternative to larger renderers like MapLibre GL JS. It's designed for developers who need to integrate vector tile rendering into Leaflet-based applications, supporting features like variable web fonts, RTL text, and custom symbolizers. While now in maintenance mode with new development focused on MapLibre GL JS, it remains useful for legacy Leaflet systems or as a drop-in replacement for raster basemaps.