DBeaver - DBeaver - Universal Database Manager and SQL Client.
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
MySQL Workbench - MySQL Workbench is a unified visual tool for database architects, developers, and DBAs.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.
Better Uptime - We call you when your website goes down