GitBook is a knowledge management tool aimed towards technical teams in organizations. It serves as a centralized platform where teams can create and manage an internal knowledge base, fostering easier access to information needed to build products efficiently.

GitBook incorporates Git-like collaboration and integrations, facilitating contributions from each team member. GitBook is equipped with a real-time, block-based editor which supports Markdown for quick editing.

This facilitates the arrangement and re-arrangement of content at ease. The tool encapsulates the concept of a single source of truth where all essential team knowledge can be stored and referenced, further simplifying the capture of missing knowledge and keeping documentation updated.

Unique features include deep integration capabilities, branch-based systems, and Git-like version control. This tool's flexibility and ease of use are extended further through options for collaborative real-time work, version history tracking for each page, change request creation and review, threaded comments and person tagging for feedback, and notifications.

GitBook also includes functionality for tying API directly into documentation using built-in OpenAPI blocks. As a company scales, GitBook provides tiered permission controls that maintain the administrator's control over document viewing and editing rights.

Simplified onboarding is possible with options for setting up SAML or Single Sign-On for your organization, and various role assignments are available to suit everyone in the team.