"Goal : To analyze the legal protection mechanism for donors on the Kitabisa.com platform from two perspectives: 1.) An Islamic law review focusing on the principles of amanah (trust), tabarru’ contract, and maslahah (public interest); 2.) A review based on the principles within the Financial Services Authority Regulation (POJK) No. 37/POJK.04/2018. Methods : This research employs a…