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.
MongoDB Compass - The easiest way to explore and manipulate your MongoDB data
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Studio 3T - The perfect match for your MongoDB team
Better Uptime - We call you when your website goes down
NoSQLBooster for MongoDB - NoSQLBooster for MongoDB (formerly MongoBooster) is a shell-centric cross-platform GUI tool for MongoDB v2.