Documentation

PlantUML

Mermaid

Mermaid diagram syntax, flowcharts, and text-based visualization techniques

ExcaliDraw

Top 10 Documentation Site Generators

#	Tool	Language	Best For	License
1	ReadTheDocs / Sphinx	Python	Technical / API docs	Open Source
2	Docusaurus	React	Open source project docs	Open Source
3	MkDocs / Material	Python	Markdown-based project docs	Open Source
4	VitePress	Vue	Lightweight static docs	Open Source
5	GitBook	SaaS	Team knowledge bases	Freemium
6	Mintlify	SaaS	Beautiful API docs	Freemium
7	Doxygen	C/C++	Source code reference docs	Open Source
8	Swagger / Redoc	Any	REST API documentation	Open Source
9	Confluence	SaaS	Enterprise wiki	Paid
10	Notion	SaaS	General-purpose docs & wiki	Freemium

Pros & Cons

1. ReadTheDocs / Sphinx

Pros: Free hosting for open-source; reStructuredText + Markdown; auto-build from Git; versioned docs; PDF/ePub export; mature ecosystem with rich extensions
Cons: Steep learning curve (rST syntax); theming is limited compared to modern tools; build can be slow for large projects

2. Docusaurus

Pros: Built by Meta; React-based with MDX support; versioning, i18n, search built-in; excellent plugin ecosystem; modern UI
Cons: Requires Node.js; heavier build compared to static-only tools; React knowledge needed for deep customization

3. MkDocs / Material for MkDocs

Pros: Pure Markdown; extremely simple setup; Material theme is beautiful & feature-rich (search, tabs, admonitions); fast builds; great for internal docs
Cons: Less flexible than Sphinx for complex docs; Material theme’s advanced features require paid sponsorship (Insiders edition)

4. VitePress

Pros: Vite-powered, extremely fast; Vue 3 components in Markdown; lightweight; great DX; ideal for library/framework docs
Cons: Younger ecosystem; fewer plugins than Docusaurus; Vue knowledge needed for advanced customization

5. GitHub Pages

Pros: Free for public repos; deeply integrated with GitHub; supports Jekyll (built-in) or any static site generator; custom domains; HTTPS; CI/CD via GitHub Actions; massive community; ideal for open-source project docs
Cons: Only static sites (no server-side); Jekyll build can be slow; limited to public repos on free tier; no built-in search (needs Algolia etc.); no WYSIWYG editor; 1GB site size limit

6. GitBook

Pros: Beautiful WYSIWYG editor; Git sync; team collaboration; hosted solution with zero maintenance; great for non-technical contributors
Cons: Free tier is limited; less customizable than self-hosted tools; vendor lock-in; export options are restricted

7. Mintlify

Pros: Gorgeous default theme; built-in API playground; AI-powered search; fast setup with MDX; excellent for developer-facing products
Cons: Closed-source SaaS; pricing scales with usage; less community ecosystem; limited self-hosting options

8. Doxygen

Pros: De facto standard for C/C++/Java source code docs; auto-generates from code comments; supports call graphs via Graphviz; cross-referencing; multi-language support
Cons: Outdated UI; complex configuration (Doxyfile); output looks dated without custom CSS; overkill for non-code documentation

9. Docsify

Pros: No build step — renders Markdown at runtime; extremely simple setup (single index.html); lightweight; plugin system; full-text search built-in; GitHub Pages friendly; great for small-to-medium docs
Cons: Client-side rendering hurts SEO; not suitable for very large doc sites; slower initial load than pre-built static sites; limited theming compared to Docusaurus/VitePress

10. Swagger (OpenAPI) / Redoc

Pros: Industry standard for REST API docs; interactive “Try It” console; auto-generated from OpenAPI spec; Redoc provides clean three-panel layout
Cons: Only for API docs (not general documentation); spec file maintenance can be tedious; limited narrative/guide content support

11. Confluence

Pros: Deep Jira/Atlassian integration; rich editor; permissions & spaces; enterprise-grade; templates; widely adopted in corporations
Cons: Expensive at scale; performance can be slow; Markdown support is weak; pages become disorganized without governance; vendor lock-in

12. Notion

Pros: All-in-one workspace (docs, databases, kanban); drag-and-drop block editor; real-time collaboration; public page sharing; flexible structure
Cons: Not purpose-built for technical docs; no native versioning for docs; SEO is limited for public pages; export format is lossy; offline support is weak

Comparison Matrix

Feature	ReadTheDocs	Docusaurus	MkDocs	VitePress	GitHub Pages	GitBook	Mintlify	Doxygen	Docsify	Swagger	Confluence	Notion
Markdown	✅	✅	✅	✅	✅	✅	✅	❌	✅	❌	⚠️	✅
Self-hosted	✅	✅	✅	✅	⚠️	❌	⚠️	✅	✅	✅	✅	❌
Versioning	✅	✅	⚠️	⚠️	⚠️	✅	✅	❌	❌	✅	❌	❌
Search	✅	✅	✅	✅	❌	✅	✅	✅	✅	❌	✅	✅
API Playground	❌	⚠️	❌	❌	❌	❌	✅	❌	❌	✅	❌	❌
Free/OSS	✅	✅	✅	✅	✅	⚠️	❌	✅	✅	✅	❌	⚠️
i18n	✅	✅	⚠️	✅	⚠️	❌	❌	❌	⚠️	❌	✅	❌
WYSIWYG	❌	❌	❌	❌	❌	✅	❌	❌	❌	✅	✅	✅

✅ = Full support, ⚠️ = Partial / Plugin needed, ❌ = Not supported

Recommendation

Open source project docs → Docusaurus or MkDocs Material
API documentation → Mintlify or Swagger/Redoc
C/C++ source code docs → Doxygen
Python project docs → ReadTheDocs + Sphinx
Lightweight & fast → VitePress
Free hosting from GitHub → GitHub Pages + Jekyll/Docusaurus/VitePress
Zero-build simplicity → Docsify
Non-technical team collaboration → GitBook or Notion
Enterprise internal wiki → Confluence

Sphinx Themes

Algolia

Focus on document search, provide fast, full search function, integrated with static doc site (for example ReadTheDocs, Docusaurus, VitePress)

Markdownify

Convert HTML to Markdown

markdown = markdownify(
            body_html,
            heading_style="ATX",
            bullets="-",
            strip=['script', 'style'],
            escape_asterisks=False,
            escape_underscores=False,
        )

MarkItDown

Covert any file to Makrdown

MdownDown-It

Convert Markdown to HTML

mistune

Python fast Markdown parser

mammoth

Convert .docx files to HTML or Markdown, focusing on semantic content structure while ignoring complex formatting styles.

ScreenToGif

ScreenToGif is a free, open-source screen recording tool for Windows that allows you to:

Record your screen, webcam, or sketchboard
Edit frames directly in the built-in editor
Export as GIF, video (MP4, AVI), WebP, or images

Similar Tools

Tool	Platform	Key Feature
LICEcap	Windows/macOS	Lightweight, simple GIF capture
Peek	Linux	Simple animated GIF recorder
Kap	macOS	Clean UI, exports GIF/MP4/WebM
ShareX	Windows	Full-featured, screenshots + GIF + video
Gyroflow	Cross-platform	Advanced video stabilization
OBS Studio	Cross-platform	Professional screen/video recording
Recordit	Windows/macOS	Quick GIF sharing via cloud
Gifox	macOS	Menubar GIF recorder

Recommendation

Windows: ShareX (most powerful free option) or ScreenToGif
macOS: Kap or Gifox
Linux: Peek
Cross-platform: OBS Studio