Docusaurus vs Fern: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
Docusaurus
Docusaurus is a free open-source tool that helps you build beautiful documentation websites quickly using React and Markdown.
Fern
Fern generates production-ready SDKs and beautiful API documentation automatically from your OpenAPI specification for multiple programming languages.
Docusaurus
Docusaurus is a free open-source tool that helps you build beautiful documentation websites quickly using React and Markdown.
Fern
Fern generates production-ready SDKs and beautiful API documentation automatically from your OpenAPI specification for multiple programming languages.
Docusaurus
Free and open source with MIT license
Built with React and Node.js
Write content in Markdown and MDX
Built-in search with Algolia DocSearch
Version management for product releases
Support for 70+ languages
Blog and documentation in one site
Dark mode and responsive design
Fast static site generation
Easy deployment to any host
Fern
Automatic SDK generation in 8+ programming languages
Stripe-style API documentation websites
Direct publishing to package registries
OpenAPI and AsyncAPI support
Interactive API playground with live testing
Custom branding and domain support
Built-in OAuth 2.0 and authentication
Automatic pagination and retry logic
WebSocket and SSE support
Version control with Git
AI-powered search assistant
Open source on GitHub
Docusaurus
Docusaurus is completely free and open source. There are no subscription fees, user limits, or hidden costs. The project is released under the MIT license, which means you can use it for personal projects, commercial work, or anything else without paying.
Because Docusaurus is open source, you have access to the complete code and can customize it as much as you want. The project is maintained by Meta and a large community of developers who continuously improve it and add new features.
You only need to pay for web hosting to put your site online, but even this can be free using services like GitHub Pages, Netlify, or Vercel. All core features including search, versioning, internationalization, and blog support are included at no cost.
Fern
Fern offers separate pricing for SDKs and documentation to fit different team needs.
For SDK generation, there are three tiers available:
Basic Plan ($250/month per SDK): Supports up to 50 endpoints with REST API support, automated publishing, and schema validation. Billed annually.
Pro Plan ($600/month per SDK): Includes up to 150 endpoints, WebSockets, webhooks, dedicated Slack support, and advanced features like pagination and OAuth. Billed annually.
Enterprise Plan (Custom pricing): Offers unlimited endpoints, SDK migration services, enterprise support with SLAs, GitHub issue monitoring, and custom code maintenance.
For documentation, pricing includes:
Basic Plan ($400/month): Stripe-like API reference, API playground, custom domain, and built-in components. Billed annually.
Pro Plan ($1,000/month): Everything in Basic plus custom React components, authenticated docs, role-based access control, and AI search capabilities. Billed annually.
Enterprise Plan (Custom pricing): Includes white-glove content migration, custom integrations, SSO authentication, design services, and enterprise support.