Password Manager

This project presents a Password Manager, a secure web-based application developed to help users store and manage their passwords safely. Many people still use weak or repeated passwords, which increases the chances of cyberattacks and data loss. To address this issue, the Password Manager provides a simple and reliable way to keep all passwords protected in one place. The system uses AES-256 encryption, PBKDF2 key derivation, and a master password to ensure that only the user can access their data. It is built using React, Node.js, TypeScript, and PostgreSQL, offering features like secure password storage, strong password generation, category-wise organization, and auto-lock for safety. This project highlights the importance of safe password practices and shows how modern web technologies can support better cybersecurity. The core strength of this Password Manager lies in its robust, multi-layered security architecture, specifically designed to address the vulnerabilities inherent in typical password management. AES-256 (Advanced Encryption Standard with a 256-bit key) is utilized as the primary symmetric encryption algorithm, universally recognized for its high level of security and computational efficiency .Before encryption can occur, the user's single, high-entropy master password is never stored directly. Instead, it is transformed into a strong cryptographic key using the PBKDF2) algorithm. PBKDF2 introduces a salt and a high iteration count to make brute-force attacks computationally infeasible, ensuring that even if the database is compromised, the encrypted password vault remains secure. The system's backend, built with Node.js and TypeScript, provides a fast, type-safe, and scalable API, communicating with a PostgreSQL database used exclusively to store the securely encrypted blobs of data, never the plain-text passwords or the master password itself. This combination ensures data integrity and high availability while maintaining a strict zero-knowledge security standard. Enhanced User Experience and Cybersecurity Impact Beyond the foundational security, the application provides essential features that promote better cybersecurity habits among users. Developed with React for a responsive and intuitive user interface, the Password Manager offers a seamless experience for managing credentials. Its strong password generation feature mitigates the risk of users choosing weak or easily guessable passwords, a leading cause of data breaches. Furthermore, the ability to organize credentials category-wise significantly improves usability and management efficiency. Crucially, the auto-lock safety mechanism automatically logs the user out after a period of inactivity, protecting the unlocked vault from unauthorized access on a shared or unattended device. This project effectively demonstrates how modern web development technologies React for front-end, Node.js/TypeScript for back-end, and PostgreSQL for data storage can be integrated to deliver a practical and high-impact solution to a critical real-world cybersecurity challenge: eliminating the dependence on weak and repeated passwords