Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
TrackDuck - Visual feedback for web design and development.
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Valist - Automatically created staging environments for every update with a shareable link for testing
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.
Usersnap - Usersnap is a customer feedback software for SaaS companies that need to constantly improve and grow their products.