DBeaver - DBeaver - Universal Database Manager and SQL Client.
Rock RMS - Rock RMS is a community supported open-source Church Management System that provides innovative features to churches of all sizes.
MySQL Workbench - MySQL Workbench is a unified visual tool for database architects, developers, and DBAs.
ChurchSuite - ChurchSuite is a cloud hosted, web-based church management system, ideal church database software for churches.
Sequel Pro - MySQL database management for Mac OS X
eCatholic - eCatholic provides a total content management system that helps Catholic parishes, ministries, & dioceses create websites & website design.