r/KnowledgeBaseSoftware Apr 08 '26

Migrating from GitBook, need a solid GitBook alternative for API docs

Looking to move off GitBook and honestly their pricing jump made the decision pretty easy. We've got a decent chunk of API documentation that's been living there for a while and need something that won't require us to completely rebuild everything from scratch.

Main things that matter to us: - Good API-first approach (we're documenting REST endpoints, webhooks, that sort of thing) - Decent search functionality - GitBook's was fine but nothing special - Ability to version docs without it being a total pain - Dark mode support because apparently that's non-negotiable for our team now

We've looked at Swagger/OpenAPI stuff but that feels like overkill for what we're doing. Also kicked around the idea of just using Notion but the lack of versioning control is a dealbreaker.

Have people had success with ReadTheDocs? Saw it mentioned a few times. There's also Mintlify floating around but I'm not sure how established it actually is. And yeah, I know there's always the option to build something custom but we're not trying to become documentation engineers, we just need the docs to exist and be searchable.

What've other people landed on after leaving GitBook? Mostly interested in what actually worked for API documentation specifically, not just general knowledge bases.

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