DBeaver - DBeaver - Universal Database Manager and SQL Client.
Dabble Writer - Writing software for novelists.
SQuirreL SQL - SQuirreL SQL is an open-source Java SQL Client program for any JDBC compliant database
FriendlyData - Communicate with databases like a human
DBComparer - Free Compare database tool - DBComparer 3.0 is a professional compare database tool for comparing Microsoft SQL Server 2008 (and 2005) database structure.
Endaga - Build your own cellular network. Just add power & internet.