StorageNinja icon

StorageNinja

by osmnnldev@gmail.com Β· Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Chrome Extension to manage Local Storage, Session Storage, and Cookies for the active tab

Users
50
βˆ’3 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#108K
#90K among extensions
Version
1.0.10
updated 16 Dec 2025

Users

monthly, 16 months
02550Jul 2025Mar 2026Oct 2026
Latest, 16 Oct 2026: 50 usersMove the mouse over the chart for any month

Ratings count

monthly, 16 months
012Jul 2025Mar 2026Oct 2026
Latest, 16 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About StorageNinja

πŸ₯· Storage Ninja - Professional Browser Storage Management Tool osmnnl.github.io/StorageNinja Storage Ninja is a powerful Chrome extension designed for developers, QA testers, and power users who need to efficiently manage browser storage data. Take complete control of Local Storage, Session Storage, and Cookies with our intuitive and secure interface. πŸš€ KEY FEATURES: βœ… Local Storage Management View all key-value pairs in real-time Copy/paste data in JSON format Individual item editing and deletion Bulk operations with confirmation dialogs βœ… Session Storage Control Full session data visibility Import/export functionality Safe manipulation tools Real-time count updates βœ… Cookie Management & Smart Features Comprehensive cookie viewing Detailed attributes display (domain, path, secure, httpOnly) Advanced cookie operations πŸ†• Smart Paste: Automatically adapts cookies from other domains (e.g. Prod -> Localhost) for seamless session transfer. Clean Paste: Automatically clears existing cookies before pasting to ensure a clean state. Domain-specific management βœ… Developer-Friendly Features JSON format support for all operations Copy data between different storage types Bulk import/export capabilities Professional toast notifications Modern glassmorphism UI design πŸ”’ PRIVACY & SECURITY: Uses minimal permissions (no broad website access) Accesses only the currently active tab when popup is opened All data processing occurs locally on your device No data collection, tracking, or external server communication Dynamic content script injection only when needed Open source and completely transparent Secure confirmation dialogs for destructive operations 🎯 PERFECT FOR: Web Developers debugging storage issues QA Testers managing test data Digital Marketers handling tracking data Students learning web development Anyone needing browser storage control πŸ’‘ HOW TO USE: Click the Storage Ninja icon in your browser toolbar View real-time counts for each storage type Use Copy/Paste buttons for quick data transfer Click Details for individual item management Enjoy seamless storage manipulation ⚑ TECHNICAL HIGHLIGHTS: Manifest V3 compliant Modern ES6+ JavaScript Custom CSS / Glassmorphism Design (No remote code/CDNs) Font Awesome icons Responsive design Error handling and validation 🌟 Why Choose Storage Ninja? Unlike other storage extensions, Storage Ninja provides a complete solution with professional UI, advanced features like Smart Paste, and absolute privacy. Perfect for both beginners and expert developers. πŸ“Š Extension Permissions Explained: activeTab: Access current page storage cookies: Cookie management scripting: Content script injection clipboardRead/Write: Copy/paste functionality Start managing your browser storage like a ninja today! πŸ₯·

Growth

WindowUsersChangeRatingsRating
7 daysβˆ’5βˆ’9.1%00.00
30 daysβˆ’3βˆ’5.7%00.00
6 months+18+56.2%00.00
1 year+34+212.5%+10.00

Version history

3 versions recorded
1.0.1016 Dec 2025
1.0.11 Jul 2025
1.0.31 Jul 2025

Details

Category
Developer Tools
First seen
1 Jul 2025
Size
211 KB
Languages
en
Pricing
Free
Privacy policy
osmnnl.github.io
Extension ID
kenpefhgbcjkofomcfajmhmilhkfdedp

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
activeTabcookiesscriptingclipboardReadclipboardWrite
Site access
<all_urls>
Can read and change data on every website you visit.

Alternatives to StorageNinja

Extensions that rank for the same store searches or share the Developer Tools category, ordered by users