Docsify

Docsify turns Markdown files into a documentation website at runtime — there is no static build step. A single index.html boots docsify.js, which fetches and renders .md files dynamically.

Targets Docsify v5 by default. v5 is currently published only as a release candidate (5.0.0-rc.4) — all CDN URLs in this skill pin to that exact version. Use docsify@rc (dist-tag) to track the latest 5.x RC, and switch to docsify@5 only after v5 stable is published. If the user needs the long-stable line, use docsify@4 (CDN path /lib/ instead of /dist/). For v4 migration guidance, load references/advanced.md.

When to load which reference

Load only the references needed for the current task — do not preload everything.

Task	Load
Bootstrap a brand-new site / write index.html / docsify-cli usage	references/getting-started.md (+ assets/index.html)
Add pages, build _sidebar.md / _navbar.md / _coverpage.md, multi-language layout, TOC	references/pages-and-navigation.md
Set or look up any window.$docsify option	references/configuration.md
Docsify-specific Markdown syntax (callouts, link/image attrs, heading IDs, embed :include, code highlight)	references/markdown-helpers.md
Theme switching, CSS variables, custom fonts, body classes, dark mode	references/themes-and-styling.md
Install / configure built-in or community plugins	references/plugins.md
Write a custom Docsify plugin (lifecycle hooks)	references/writing-plugins.md
Deploy to GitHub Pages, GitLab, Netlify, Vercel, Firebase, Docker, Nginx, AWS Amplify, etc.	references/deployment.md
PWA / offline, virtual routes, Vue components, v4 → v5 upgrade	references/advanced.md

Core mental model

A Docsify site needs only three things:

1. index.html — single boot file that loads docsify.js, a theme CSS, optional plugins, and defines window.$docsify config.
2. Markdown files — README.md is the homepage; any other *.md is a route (e.g. guide.md → /#/guide).
3. Special underscore files (optional but common):
   • _sidebar.md — sidebar menu (requires loadSidebar: true)
   • _navbar.md — top navbar (requires loadNavbar: true)
   • _coverpage.md — landing cover (requires coverpage: true)
   • _404.md — custom 404 (requires notFoundPage: true)
   • _media/ — images and other assets
   • .nojekyll — required on GitHub Pages so underscore files are served

Subfolders define nested routes; nested _sidebar.md / _navbar.md override parent ones (used for multi-language sites).

Quick start workflow

For "set up a new Docsify site" requests:

1. Read references/getting-started.md for the canonical index.html and CLI commands.
2. Copy assets/index.html into the site folder and adjust the name, repo, theme add-ons, and plugin <script> tags.
3. Create README.md (homepage) and .nojekyll (empty file).
4. If the user wants a sidebar/navbar/cover, also load references/pages-and-navigation.md.
5. Verify locally with docsify serve <folder> (or python3 -m http.server).

Key conventions to preserve

• Always pin an exact CDN version. v5 is in RC: use docsify@5.0.0-rc.4 (or the @rc tag) until v5 stable releases — the shorthand docsify@5 does not resolve today. For the long-stable line, use docsify@4 with CDN path /lib/ instead of /dist/. See assets/index.html.
• Theme CSS must come before Docsify JS; theme add-ons must come after the core theme; Prism language/theme files and plugin scripts must come after docsify.min.js.
• .nojekyll is mandatory whenever the site is on GitHub Pages and uses any _*.md file.
• Hash routing is the default (/#/page). Only switch to routerMode: 'history' if the host can rewrite URLs to index.html, and add alias entries for _sidebar.md / _navbar.md (see references/configuration.md).
• Underscore files fall back up the directory tree — /guide/_sidebar.md is used if present, otherwise /_sidebar.md.
• Docsify renders Markdown via marked and syntax-highlights via Prism (load extra Prism language components after docsify.min.js).

Common gotchas

• Forgetting .nojekyll → GitHub Pages 404s on _sidebar.md.
• Putting plugin <script> tags before docsify.min.js → plugin never registers.
• Setting coverpage: true without creating _coverpage.md → blank landing.
• Using routerMode: 'history' on a static host without rewrite rules → deep links 404 on refresh.
• Mermaid: Docsify only supports synchronous Mermaid (≤ v9.3.0). See references/markdown-helpers.md.
• The legacy !> / ?> callouts and the themeColor / topMargin options are deprecated in v5 — prefer GitHub-style > [!NOTE] callouts and CSS variables.

Assets

• assets/index.html — production-ready index.html template with comments showing where to enable theme add-ons and plugins. Copy and edit; do not load into the conversation context unless modifying the template itself.