Chef
Ansible
Jenkins
Puppet Enterprise
Travis CI
CircleCI
Codeship
Salt
Docsify
Docusaurus
Doxygen
DocFX
Daux.io
Natural Docs
Cirrus Insight
Reply.io
ChefAnsible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Docusaurus - Easy to maintain open source documentation websites
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Doxygen - Generate documentation from source code
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
DocFX - A documentation generation tool for API reference and Markdown files!