FerretDB

FerretDB is an open-source proxy designed as an alternative to MongoDB that translates MongoDB 5.0+ wire protocol queries into SQL, utilizing PostgreSQL with the DocumentDB extension. Its primary use case is to provide a compatible and easy-to-use document database solution for applications that leverage MongoDB drivers while avoiding the licensing issues associated with MongoDB. Notable features include drop-in replacement compatibility for MongoDB, support for popular MongoDB tools, and continuous enhancements aimed at increasing performance and feature parity.