Quark Resource Search is an online search engine for finding materials shared across cloud storage services. It helps users search resources on Quark, Alibaba, Baidu, Xunlei, and UC drives, bringing results from multiple platforms into one convenient destination. The site says it adds new resources daily and checks whether links remain active, making it easier to discover current, accessible listings.

Its catalog spans films and television, books, software, creative assets, tutorials, and reference materials. Featured examples include books on history, psychology, economics, and brain performance, as well as practical guides for Microsoft Word and an OCR tool for extracting text and tables from images. The service describes itself as a search engine rather than a file host: resources are shared by users on the respective cloud platforms, and the site states that it does not store, copy, or distribute files.

It advises users with concerns about a listing to contact the relevant cloud service and provides an email address for feedback or removal requests