Webmin - Webmin is a web-based interface for system administration for Unix.
Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
Vesta Control Panel - – What I love about Vesta is that it's fast and easy to use
Dokku - Docker powered mini-Heroku in around 100 lines of Bash
ISPConfig - ISPConfig 3 is an open source hosting control panel for Linux.
Google Cloud Functions - A serverless platform for building event-based microservices.