Gitbook

Documentation platform that turns product knowledge into a connected system. Teams document APIs, products, and internal knowledge bases with a visual editor and optional Git-backed workflows.

GitBook is used by teams at Gravitee, Batch, and Swarmia. It differentiates itself with bidirectional Git sync for GitHub and GitLab: edit in the visual interface or in your IDE, with changes kept in sync. Built-in AI features help with discoverability, including llms.txt and MCP support so AI tools like ChatGPT and Claude can surface your docs.

Key features:

• Git sync with GitHub and GitLab for version-controlled docs
• Visual editor with reviews, merge rules, and AI-assisted linting
• Embedded AI Assistant powered by your docs and MCP sources
• llms.txt and MCP for AI discoverability across tools
• Authenticated content and role-based access control
• SOC 2, ISO 27001, and GDPR compliance for enterprise use

Product and API documentation, help centers, and internal knowledge bases are common uses. Developers benefit from editing in their IDE with Git sync, embedding the assistant in product UIs, and publishing docs that stay discoverable across search and AI tools.