Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Airborn - Create and edit documents online without sacrificing your privacy
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Bit.ai - Bit is a smart real-time document collaboration platform for teams to create interactive documents, manage digital content and track document insights.
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.