DeepDoc vs Fern
| DeepDoc | Fern | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | — | api, Linux, macOS, self-hosted, Web, Windows |
| Free plan | Yes | Yes |
| API spec support | Yes | — |
| Code repository sync | Yes | — |
| Automatic updates | No | — |
| Source types | Python, JavaScript, TypeScript, Go, PHP, Vue, GraphQL, OpenAPI/Swagger specifications | — |
| Output formats | Markdown, Mermaid diagrams, static Next.js/Fumadocs site, interactive API reference | — |
| Hosting model | self_hosted | — |
Both are listed in Best AI Documentation Generators. On Specifiction, Fern scores higher on our published basis.