Svelte - Cybernetically enhanced web apps
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
DronaHQ Designer - UI design tool to build captivating front end with no code.
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
FlexboxPatterns - Build awesome user interfaces with CSS flexbox
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.