Docny vs Fern
Docny
docny.ioFern
buildwithfern.comSide by side
| Figure | Docny | Fern |
|---|---|---|
| Price from | £45/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 2 | 2 |
| Spec score · AI Documentation Generators | 8.9 (#3) | 8.7 (#8) |
| Audience | Docny is designed for API companies, developer tools, open-source projects, technical writers, developer advocates, and engineering teams. | both |
| Integrations | Listed integrations include GitHub, Jira, Linear, Discord, Algolia, Slack, Notion, and Intercom. | Listed integrations include PostHog, Google Analytics, Segment, Mixpanel, FullStory, Intercom, Postman, and Context7. |
| Public API | Docny advertises a machine-readable OpenAPI 3.1 specification at /openapi.json and API endpoints for projects and Guardian operations. | Fern exposes a REST API for Ask Fern configuration, custom context and FAQs, usage, and analytics, authenticated with organization API keys. |
| Version history | Users can publish multiple documentation versions and browse, compare, or restore earlier edits. | Yes |
| What it does | Docny is an AI-native documentation CMS for creating, hosting, and maintaining developer documentation. | Fern turns API definitions and Markdown into hosted documentation sites, SDKs, and command-line tools. |
Plans
In their own words
Docny
Docny is a hosted documentation CMS for developer teams, combining authoring, publishing, hosting and analytics. Content can be written in a WYSIWYG block editor or code-first MDX. Guardian AI scans repositories, URLs, code comments and READMEs to create structured documentation and identify drift. API references support OpenAPI 3.1 and Swagger 2.0, with interactive explorers and re-rendering when linked specifications change. Managed hosting includes SSL, global CDN delivery, custom domains, versioning and one-click publishing. Teams get real-time cursors, inline comments and suggestion resolution, while published sites can include an AI assistant for reader questions. Analytics show popular pages, searches, traffic trends and drop-off points. Integrations include GitHub, Discord, Jira, Algolia, Slack, Notion, Intercom and Linear, plus a public API. Hobby costs £0/mo for one project; Pro costs £45/mo and adds unlimited projects and collaboration features.