DBeaver - DBeaver - Universal Database Manager and SQL Client.
AppMockUp - Create the most compelling screenshots for your app.
DataGrip - Tool for SQL and databases
Placeit - Generate realistic product shots in seconds
HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.
Smartmockups - Create stunning product mockups, easily and online.