Fern
7.8#1 in api generation softwareFree planFree planWebAPILinuxmacOS
VisitFern vs Swimm
What both publish
| Fact | Fern | Swimm |
|---|---|---|
| Documentation | Fern Docs builds interactive documentation websites from Markdown and API specifications. | Swimm describes auto-generated documentation and visualizations of flows with detailed explanations as product capabilities. |
| Integrations | Listed integrations include PostHog, Google Analytics, Segment, Mixpanel, FullStory, Intercom, Postman, and Context7. | Swimm’s current site names Copilot, Cursor, Claude Code, internal agents, and MCP servers as tools its knowledge base can support. |
Fern plans
- FreeFree
- EnterprisePriced on request
Swimm plans
- Custom engagement pricingPriced on request
Pick Fern if…
Fern may suit teams producing API documentation and client libraries from specifications. The access controls, analytics, AI tools, and enterprise self-hosting options may also fit organizations with varied documentation needs.
Pick Swimm if…
Swimm suits organizations modernizing complex legacy codebases, microservice architectures, or systems with regulatory constraints. It fits teams needing repository-aware documentation, architecture maps, and AI context across deployment models.