Docuie is described as 'provides affordable documentation for single developers all the way up to enterprise customers. Documentation is extremely easy to set up with only a few clicks required' and is an app in the Development category. There are more than 10 alternatives to Docuie for a variety of platforms, including Online / Web-based, Mac, Self-Hosted solutions, Linux and Windows. The best alternative is Wiki.js, which is both free and Open Source. Other great apps like Docuie are Read The Docs (Free, Open Source), Sphinx (Free, Open Source), Documize (Freemium, Open Source) and Slate API Docs Generator (Free, Open Source).
Write your content in the widely used and simple Markdown format, using the built-in visual editor. Unlike other wiki software that save content in a database with a difficult to extract format, Wiki.js saves all your content directly into Markdown (.
Read the Docs hosts documentation for the open source community. It supports Sphinx docs written with reStructuredText, and can pull from your Subversion, Bazaar, Git, and Mercurial repositories. The code is open source, and available on github.
ReadMe is a completely customizable and collaborative place for dynamic API and/or product documentation. Users can play around with the API right in the docs, automatically generated from a Swagger / OAS file. It also works as a knowledge base platform.
aglio - An API Blueprint renderer that supports multiple themes and outputs static HTML that can be served by any web host. API Blueprint is a Markdown-based document format that lets you write API descriptions and documentation in a simple and straightforward way.