A lightweight replication manager for PostgreSQL (Postgres)
Unix pager (with rich functionality) designed for work with tables
plpgsql_check is a linter tool (does source code static analyze)
High-performance connection pool for PostgreSQL
One advanced and mature open-source MPP
PostgreSQL replication extension to create an active-active database
Relational programmable database with GUI
Postgres-native columnar storage extension
A multi-threaded, multi-database tcp-based database insertion app.
A graph database as a Redis module
Partitioning tool for PostgreSQL
Cross-platform open source Redis DB management tool
Sedna is a native full-featured XML database management system.
Open Design and Integration Environment
A light GUI editor for SQLite databases