GitHub Swagger Sidebar is a Chrome add-on that enhances the experience of viewing Swagger/OpenAPI documentation directly within GitHub repositories. This tool eliminates the need for tedious copy-pasting or switching between multiple editors by allowing users to view API documentation in a convenient sidebar. The sidebar can be toggled on and off, providing a seamless way to access the relevant information without disrupting the workflow.

The add-on supports viewing documentation from both the root level and individual Swagger documents, making it easier to navigate complex APIs. Being open-source and free, GitHub Swagger Sidebar offers a practical solution for developers who frequently interact with API documentation on GitHub, enhancing productivity and streamlining the development process.