Catapult is a cloud based application that combines various Cloud Storage services like Google Drive, OneDrive and Dropbox and provides a uniform interface to access all the files with a single login. The main aim was to increase the total cloud storage space that a user gets for free by combining all these services. Catapult uses REST APIs of these cloud services to manage user's files on their behalf. The total storage space that a user gets is the sum of storages from all the cloud accounts connected to Catapult. A user can connect multiple accounts and access them together from one interface. Different algorithms were implemented like Best Fit, First Fit and Round Robin to store files among available cloud drives.