Finds points that fall within polygon(s).

Finds the tangents of a polygon from a point.

Calculates the geodesic area in square meters of one or more polygons.

Selector parser with built in methods for working with selector strings.

A JS library for finding optimal label position inside a polygon

Resolve nested CSS selectors

Converts line(s) to polygon(s).

Rewind using Shoelace Formula.

Find self-intersections in geojson polygon (possibly with interior rings)

Polygon/polyline processing utilities

Converts a polygon to a line string.

PostCSS plugin to transform :not() W3C CSS level 4 pseudo class to :not() CSS level 3 selectors

Powerful and compliant CSS selector parser.

A JavaScript image annotation library

Tesselates a polygon or multipolygon into a collection of triangle polygons using earcut.

Takes a Feature or FeatureCollection and returns a Point guaranteed to be on the surface of the feature.

Converts a bounding box to a GeoJSON polygon.

Fast CSS Selectors API Engine

Fast CSS Selectors API Engine

Standalone CSS Selector Finder and Parser.