GitBook

GitBook is built for developers who want their documentation treated like code. You commit docs to a repo. You get versioning, branching, and review workflows. Engineers recognize the workflow immediately. No learning curve to a new tool—it’s just Git.

The output is beautiful. Docs are searchable, navigable, and look professional without needing a designer. API documentation gets first-class treatment. Your Python, JavaScript, or Go library gets docs that look like Stripe’s API docs, not like someone’s abandoned blog. The Git integration means your docs can live in the same repo as your code or in a separate documentation repository. Either way, changes get version control.

But don’t use GitBook for company handbooks or internal wikis. It’s specifically built for developer-facing documentation. Engineers appreciate the respect for their workflow. Product managers will get frustrated that it’s not designed for collaborative editing. For API docs, SDK guides, and technical references, GitBook is the best experience. For general knowledge management, use something else. It’s laser-focused, which makes it excellent at what it does and useless at everything else.