Dr.A.Anil Kumar Reddy1, Kankatala Kiran2, Kurakula Kushlu3, Oribindi Ramakrishna4, Samala Badrinath5 03 06 Cloud storage has become a popular solution for handling large volumes of data but its centralized nature raises serious concerns related to security and data privacy To address these issues this work presents a decentralized approach using blockchain technology which eliminates dependency on a single storage authority In this system any node connected to the internet can participate in the network forming a peertopeer structure that improves resource utilization and reliability The proposed model ensures data security by encrypting user files before storage and distributing them across multiple nodes using the IPFS protocol IPFS generates a unique hash value for each file which acts as an identifier and is securely recorded on the blockchain This approach ensures data immutability transparency and easy retrieval Overall the system provides a secure efficient and highly available method for storing data in a decentralized cloud environment Copyright (c) Journal of Science Engineering Technology and Management Science. All rights reserved 2026