HelpViewer is described as 'A lightweight and simple reader for ZIP archives containing Markdown and HTML files, designed as a modern and portable help file viewer' and is an app. There are more than 25 alternatives to HelpViewer for a variety of platforms, including Windows, Self-Hosted, Linux, Mac and Web-based apps. The best HelpViewer alternative is BookStack, which is both free and Open Source. Other great apps like HelpViewer are GitBook, Docusaurus, Quartz – Static Site Generator and MkDocs.
BookStack is a free and open source knowledge management platform built on PHP. The system has been built around simplicity to ensure that adding information to it is not a chore. The content structure is built on the metaphors of Books, Chapters & Pages.
GitBook is a tool for building beautiful books using Git and Markdown. It can generate your book into multiple formats:
Docusaurus is a project for easily building, deploying, and maintaining open source project websites.
Quartz is a set of tools that helps you publish your digital garden and notes as a website for free. Quartz v4 features a from-the-ground rewrite focusing on end-user extensibility and ease-of-use.
MkDocs is static site generator that's geared towards building project documentation. Documentation source files are written in Markdown, and configured with a single YAML configuration file.
Hyperbook is a quick and easy way to build interactive workbooks, that support modern standards and run superfast. It works by compiling markdown to static pages.
Simple, powerful, and fast. Meet the modern SSG framework you've always wanted.
Sphinx is a tool that makes it easy to create intelligent and beautiful documentation, written by Georg Brandl and licensed under the BSD license.
Generate and manage technical documentation with AI-powered tools, real-time collaboration, GitHub content sync, custom domains, automated onboarding support, 30 customizable blocks, external integrations, JavaScript and React widgets, and secure distribution.
A documentation generator that builds HTML output based on Markdown files. Supports Markdown specs and offers a wide set of custom components using Markdown-like syntax. Builds Reference Source documentation for .NET projects (more added soon).
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