豆瓣导出助手 is a Chrome add-on developed by Qiushi Wang that allows users to easily export the books they have read and the movies they have watched on Douban, a popular Chinese social networking platform for book and movie enthusiasts.

With this add-on, users can log in to Douban and access any user's reading and watching lists. By clicking on the "Export" button that appears on the top right of the page, users can initiate the export process. Once the export is complete, the data can be downloaded and saved locally.

To prevent IP blocking from Douban, the add-on provides the option to set a request interval. By default, the interval is set to 0, allowing all requests to be sent concurrently. However, for users with large amounts of data, it is recommended to log in and set a larger interval to avoid being blocked.

If users have any questions or feedback, they can join the QQ groupto contact the developer. Qiushi Wang, the independent developer of this add-on, welcomes any tool-related requirements and suggestions from users in the group.