ASL has drawn tremendous attention from both research and clinical community during recent years. Therefore, we deployed a cloud-based tool for ASL data analysis on top of MRICloud platform. Different from other downloadable ASL toolboxes, ASL-MRICloud features an automated interface via a web browser for data upload and results download. The computation is performed on the online server. Here we summarized the current functionalities, underlying algorithms, and representative results of ASL-MRICloud.