DBeaver - DBeaver - Universal Database Manager and SQL Client.
Blissfully - Blissfully offers solutions to track, manage, and optimize SaaS spendings.
DataGrip - Tool for SQL and databases
Zylo - Zylo helps organizations optimize their SaaS investments by providing insights around Spend, Utilization, and User Feedback.
HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.
Torii - SaaS Management Software.