Docusaurus vs Fern
Docusaurus and Fern are both API & developer docs tools aimed at developers. Both have a free plan.
Docusaurus
Static docs sites built with React
Fern
SDKs and docs generated from your API spec
| Pricing | Open source | Freemium |
| Starting price | Not published | Not published |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Built for | Developers | Developers |
| Platforms | web | web |
| Country | US · 2017 | US · 2022 |
| Rating | — | — |
Choose Docusaurus if
Developer teams wanting free, customizable docs.
- Free and open source
- Highly customizable
- Great for open source
Look elsewhere if: Non-technical editors (GitBook, Mintlify).
Choose Fern if
API-first companies.
- Saves SDK engineering
- Idiomatic code
- Docs included
Look elsewhere if: Small internal APIs.
Docusaurus vs Fern pricing
Docusaurus
- Open source$0MIT license, self-hosted static site generator
Fern
- Free$010 team members, 1,000 pages, custom domain
- EnterpriseCustomSSO, SCIM, RBAC, self-hosting, SLA
Docusaurus · Key features
- Markdown and MDX docs
- Versioning and i18n
- Blog and custom pages
- Algolia DocSearch integration
- React theming and plugins
- Deploy anywhere
Cons
- Developer setup and maintenance
- No hosted analytics or AI
- Design needs work to stand out
Fern · Key features
- SDK generation (TS, Python, Java, Go)
- Docs generation
- API definition
- CI publishing
- Versioning
- Examples
Cons
- Enterprise pricing is custom
- Spec quality required
- Vendor dependence
Docusaurus vs Fern: FAQ
Do Docusaurus and Fern have a free plan?
Yes, both Docusaurus and Fern have a free plan; paid plans add more usage and features.