Static Web Engines

For personal blogs

• Hugo
• Jekyll

For documentations

• Docusaurus: open-sourced, good support by Facebook, good UI for navigation
• Readthedocs: ideal for books, like this Python book
• Gitbook: appropriate for team documentations
• Bookstack: idem, open-sourced and self-hosting
• Docsify: lightweight team documentation
• Sphinx: API docs with simplified themes, i.e. Alabaster

For APIs

• Swagger
• [Doxygen]: for example, DBus
• [Redoc]: for example, Docker
• Postman