TL;DR Fern Docs is a static site generator for developer-focused companies to build and host their docs site. It’s the answer to the question:

How do we make it easy to build a documentation website that looks as good as Stripe’s?

Check out Cohere’s Docs built with Fern:

The Problem

Stripe.com is known for having the best documentation in the world. How do you make it easy for anyone to build a Stripe-level API documentation website?

The Solution

First, we broke down Stripe’s Docs to determine why everyone loves them so much. Then, we studied popular documentation tools, including ReadMe, Docusaurus, Redocly, GitBook, Mintlify, and MkDocs.
We took the best parts of each.

Key features

• Docs-as-code: version your documentation like you version code. We support Markdown or MDX, so you can use GitHub, VS Code, and all the workflows you’re already familiar with.
• Powered by OpenAPI: upload your OpenAPI Specification (fka Swagger) and get your API Reference auto-generated.
• API Playground: let users try your API without leaving your docs. They can even sign in to auto-populate their API credentials. Time to {200} has never been faster.
• SDK Snippets: demonstrate how to call an API using an SDK. The code snippets are auto-updated as your SDKs evolve.
• Professional design: your docs represent your engineering quality. Match your brand identity, including colors, logos, fonts, and (of course) light & dark modes.
• Component library: UI components that make your docs polished. If you’d prefer, bring your own React components.

Get a Preview of Your Docs

Want to see what your docs look like in Fern? Request a tailored demo and mention “Launch YC.”

Start Building Self-Service

Ready to get started building your docs? Follow the quickstart guide to spin up a docs site in under 15 minutes.