cql2

GeoParquet Feature Server built with FastAPI

Free and Open-Source Software libraries implementing OGC Cartographic Symbology 2.0, CQL2 and Simple Features (WKT/WKB, GeoJSON and DE-9IM)

Common Query Language 2 (CQL2) filter parser and tooling

Modern open-source geospatial server — OGC API — Features over PostGIS, with a built-in admin UI

Cql2Cpp is a C++ library that implements the parsing and evaluation of OGC CQL2(Common Query Language). It can also convert CQL2 to SQL WHERE clause

cql2g4 is a java library that implements the parsing of OGC CQL2(Common Query Language). It can also convert CQL2 to SQL WHERE clause

Lossless transcoding between CartoSym CSS and other OGC Style & Symbology encodings (CS-JSON, SLD/SE), plus MapLibre Style as an interoperability target

Go library for parsing, encoding, and building OGC CQL2 filter expressions in both Text and JSON encodings, sharing a single AST.