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

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

🌍 Serve GeoJSON and vector tiles from GeoParquet using FastAPI and DuckDB for fast queries and flexible filtering directly from object storage.