Rock RMS - Rock RMS is a community supported open-source Church Management System that provides innovative features to churches of all sizes.
DbSchema - DbSchema - Visual Database Design & Management Tool
ChurchSuite - ChurchSuite is a cloud hosted, web-based church management system, ideal church database software for churches.
SAP PowerDesigner - SAP PowerDesigner: Enterprise Architecture tools for digital transformation success
ChurchInsight - ChurchInsight is a church website content management system (cms). It allows churches to have great church websites and the best church website designs.
pgModeler - Open source data modeling tool designed for PostgreSQL. No more DDL commands written by hand. Let pgModeler do the job for you!