Refined Twitter - A browser extension that improves the Twitter experience
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Typefully - Write & publish great tweets, without distractions
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.
Thread Creator - The best way to create and schedule Twitter threads
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.