CodeDocs AI vs Fern
CodeDocs AI
eganforge.comFern
buildwithfern.comSide by side
| Figure | CodeDocs AI | Fern |
|---|---|---|
| Price from | $9/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 2 |
| Spec score · AI Documentation Generators | 9.0 (#2) | 8.7 (#8) |
| Support | The maker says feature requests, bug reports, and feedback go directly to the people and agents building the product. | The Enterprise plan includes dedicated support and an uptime SLA. |
| What it does | CodeDocs AI generates code documentation from Git repositories. | Fern turns API definitions and Markdown into hosted documentation sites, SDKs, and command-line tools. |
Plans
In their own words
CodeDocs AI
CodeDocs AI generates searchable documentation sites from Git repositories. Its AI extracts function signatures, types, dependencies and relationships from a codebase. It supports TypeScript, Python, Go, Rust, Java, C#, Ruby, PHP, Swift, Kotlin and five or more additional languages, and is described as framework-aware. Connected repositories can update documentation on each push, while smart diff detection regenerates changed sections. Output sites include syntax highlighting, interactive examples and dark mode. The service is available through web and API platforms, though API access itself is listed as a Pro feature. The free plan costs nothing, is billed forever, and covers one repository and 10 pages per month with smart parsing and basic output. Starter costs $9 a month for three repositories and 50 pages per month, with custom themes, multi-language support and priority parsing. Pro costs $29 a month and includes unlimited repositories, 500 pages per month, API access, team collaboration and automatic push updates. The maker advises reviewing AI-generated documentation before use.