DBeaver - DBeaver - Universal Database Manager and SQL Client.
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
DataGrip - Tool for SQL and databases
SourceTree - Mac and Windows client for Mercurial and Git.
HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.
GitHub Desktop - GitHub Desktop is a seamless way to contribute to projects on GitHub and GitHub Enterprise.