GeoPeek, a small macOS Quick Look extension for GeoJSON. I work with geospatial data and wanted to press Space on a .geojson in Finder and see a map instead of raw JSON. It also shows an attribute table and basic stats. https://github.com/serifsadi/geopeek

ooh I like this. I deal with a lot of random geojson files in my own project, https://landrecords.us