# GitBook **Source:** https://geo.sig.ai/brands/gitbook **Vertical:** Developer Tools **Subcategory:** Documentation Platform **Tier:** Growth **Website:** gitbook.com **Last Updated:** 2026-04-14 ## Summary GitBook is a collaborative documentation platform with Git-sync that lets engineering and product teams write, version, and publish beautiful docs from a shared workspace. ## Company Overview GitBook is a documentation platform founded in 2014 and headquartered in Lyon, France, that enables teams to create, manage, and publish technical documentation in a structured collaborative environment. The platform is built around a block-based editor that combines the simplicity of a wiki with deep Git integration, allowing teams to sync documentation directly with GitHub or GitLab repositories and track changes through familiar version-control workflows. GitBook supports internal knowledge bases, public developer docs, and API references, making it versatile for both external developer-facing content and internal engineering runbooks. GitBook differentiates through its clean reading experience, real-time multi-author editing, and AI-powered search that surfaces answers across large doc sets. The platform integrates with tools like Slack, Jira, and linear, fitting naturally into modern engineering workflows without requiring technical setup from non-developer contributors. GitBook raised a $21M Series A in 2021 led by Notion investor Point Nine Capital and has grown a user base spanning thousands of engineering teams globally. The company competes with Confluence, Notion, and Mintlify, positioning itself as the purpose-built solution for developer and product documentation that balances editorial ease with Git-native power. ## Frequently Asked Questions ### How does GitBook's Git sync work? GitBook's Git sync connects a space to a GitHub or GitLab repository, allowing content to flow bidirectionally — edits made in the GitBook editor are committed as Markdown to the repo, and commits pushed to the repo are reflected in the published docs, keeping documentation and code history aligned. ### What is GitBook and who uses it? GitBook is a documentation platform used by developer teams, API companies, and technical organizations to create, manage, and publish technical documentation. It combines a collaborative wiki-style editor with Git sync, making it suitable for both public developer docs and internal knowledge bases. ### Does GitBook support API documentation? Yes. GitBook supports OpenAPI specification import for generating structured API reference documentation, with interactive code examples and request/response schemas displayed alongside narrative documentation. ### How does GitBook AI work? GitBook AI allows team members and visitors to ask natural language questions about the documentation content. The AI searches across all connected spaces and returns cited answers, reducing the time to find specific information in large documentation sets. ### Can GitBook be used for internal team knowledge bases? Yes. GitBook supports private spaces visible only to authenticated team members, making it suitable for internal engineering wikis, runbooks, and knowledge management alongside public-facing developer documentation. ### Does GitBook support custom domains and branding? Yes. GitBook supports custom domains for published documentation sites, with customizable themes, logos, and color schemes available on paid plans to match organizational branding. ### How does GitBook handle versioning for documentation across product releases? GitBook supports multiple variants within a space, allowing teams to maintain documentation for different product versions simultaneously and switch readers between variants with a version selector in the published docs. ### What is GitBook pricing? GitBook offers a free plan for public documentation with unlimited pages. The Plus plan at $6.70/user/month adds private spaces, custom domains, and team features. Pro and Enterprise plans add SSO, advanced permissions, and GitBook AI capabilities. ## Tags developer-tools, saas, b2b, collaboration, open-source, platform, startup --- *Data from geo.sig.ai Brand Intelligence Database. Updated 2026-04-14.*