Storage & Cookie Manager

View, edit & manage LocalStorage, SessionStorage & Cookies. Includes JWT decoder, advanced search, and data snapshots.

Storage & Cookie Master (LocalStorage Viewer) Storage & Cookie Master is a powerful, developer-focused Chrome extension that lets you view, edit, track, and debug LocalStorage, SessionStorage, and Cookies for any website—quickly and safely. Modern web applications rely heavily on browser storage for authentication, user state, preferences, and session handling. Debugging these values using Chrome DevTools can be slow, limited, and error-prone. Storage & Cookie Master solves this by providing a clean, fast, and feature-rich interface designed specifically for developers, testers, and power users. -- What This Extension Does -- With Storage & Cookie Master, you can: * Instantly inspect LocalStorage, SessionStorage, and Cookies for the active tab * Edit values safely with built-in JSON formatting and validation * Track every change made by the website or the user * Roll back broken states with one-click restore * Decode JWT tokens without leaving the browser * Perform bulk operations to save time during development and testing All of this is delivered in a modern, distraction-free UI built for speed and precision. -- Key Features & Benefits -- Advanced Storage Management Easily switch between Local Storage, Session Storage, and Cookies using a simple tab-based layout. Search keys or values in real time and edit entries directly with confidence using structured JSON support. Why it matters: No more digging through DevTools panels or copying values manually. History, Change Tracking & Rollback Every storage or cookie change is automatically logged: * Additions * Updates * Deletions You can view a clear timeline of changes for the current website and roll back any change instantly to restore a previous state or recover deleted data. Why it matters: Perfect for debugging login issues, broken sessions, and unexpected state changes. Built-in JWT Decoder JWT tokens stored in LocalStorage or Cookies are automatically detected and decoded. * View headers and payloads instantly * Check expiration status at a glance Why it matters: No need for external tools when debugging authentication and authorization flows. Bulk Import & Export * Import storage data by pasting JSON (with validation) * Export all storage or cookies as formatted JSON * Clear everything while preserving selected keys Why it matters: Ideal for QA testing, environment resets, and sharing reproducible bug states. Precision Cookie Control View and edit full cookie metadata, including: * Domain & Path * Secure & HttpOnly flags * SameSite settings * Expiration date or session mode Built-in safeguards help prevent invalid cookie configurations. Why it matters: Essential for authentication, cross-site cookies, and security debugging. Clean, Developer-Friendly UI * Light & Dark themes * Professional bronze/amber color palette * Floating action buttons for quick actions * Smooth micro-animations for better usability Why it matters: A focused interface that stays out of your way and speeds up your workflow. -- Who Should Use This Extension? -- * Frontend & Full-stack Developers * QA & Automation Engineers * Security Researchers * Students learning web development * Anyone debugging browser storage or cookies If you work with modern web apps, this extension saves time and reduces frustration. -- Privacy & Safety -- * Works only on the active tab * No tracking, analytics, or external servers * All data stays on your machine -- Why Install Storage & Cookie Master? -- * Faster than Chrome DevTools for storage tasks * Safer editing with history and rollback * Built specifically for real-world debugging * Clean, modern, and productivity-focused Take full control of your browser storage. Debug smarter. Work faster. Install Storage & Cookie Master today.