Winnow is made for applying sql to geojson in memory. It is useful for working against geojson objects but also has built-in primitives for piping streams.
The main features of dmfenton/winnow are: Data Operations.
Open-source alternatives to dmfenton/winnow include: andrewharvey/geojson-mesh — Command line tool to extract borders of GeoJSON Polygons into a non-overlapping set of LineString's. See… andrewharvey/geojson-polygon-labels — Command line tool to generate point labels from GeoJSON polygons. armanjr/geojson-indoor-tools — Quick GeoJSON tools for editing and modifying geojson data, focusing on indoor features. ben-n93/geojson-shave — A command-line tool for reducing the size of GeoJSON files. berlinermorgenpost/cogran — CoGran - A command line tool for combining data of different spatial granularity. andrewharvey/geojson-id-streaming — Add a unique id to features in a GeoJSON FeatureCollection with streaming.
Command line tool to extract borders of GeoJSON Polygons into a non-overlapping set of LineString's. See https://github.com/topojson/topojson-client#mesh
Command line tool to generate point labels from GeoJSON polygons.
Quick GeoJSON tools for editing and modifying geojson data, focusing on indoor features.
Add a unique id to features in a GeoJSON FeatureCollection with streaming.