ReDoc is a documentation general tool. It allows users to generate interactive documentation from OpenAPI definitions and protocols. Redoc comes in a three-panel layout with left, central and right panels. The panels provide scope for search, navigation, and documentation along with accepting requests and responses. ReDoc is available as a live demo for users.

ReDoc is known to provide several deployment options. It is also known for its highly responsive layout. ReDoc is designed to be SSR-ready. It provides scope for integration and comes with customization options as well.  It also allows users to launch a developer portal in a short period.

GitBook is a software development company based in Lyon, Auvergne-Rhône-Alpes. It was founded in 2014 and works as a remote company. It is a platform created to help users with the different aspects of documentation. It serves as a documentation platform that provides scope for collaboration among team members through its collaborative workspace. 

GitBook provides its user base with simplification in the process of editing. It eliminates the need to rely on coding or design through its easy-to-use editor. It provides markdown, code snippets, powerful shortcuts and rich embeds. It also helps users with the centralization of knowledge. It helps users get started with API docs as well.

Comparison ReDoc vs GitBook