Description
π Instant React Detection at a Glance
React Detector Badge is your intelligent companion for browsing modern web applications. With a single glance at your browser toolbar, instantly know whether the website you're visiting is built with React.js - the world's most popular JavaScript library for building user interfaces.
β¨ How It Works:
π‘ Smart Detection: Automatically scans for React.js as you browse
π΅ Blue Icon = React.js detected β
⬀ Gray Icon = React not detected β
π One-Click Details: Click icon for React version information
βοΈ Zero Setup: Works immediately after installation
π― Key Features:
π Real-time Detection: Icon updates instantly as you navigate
π Version Details: See exact React version with one click
π‘ Performance Optimized: Lightweight, minimal resource usage
π Privacy First: No data collection or tracking
π Always Current: Regular updates for new React versions
π₯ Perfect For:
π» Developers: Research tech stacks & competitor sites
π’ Recruiters: Find companies using React
π Job Seekers: Identify potential employers using React
π Learners: Study real-world React implementations
π§ Tech Enthusiasts: Satisfy curiosity about website technologies
π οΈ Technical Highlights & Performance:
π₯ Fast Detection: Typically under 100ms on average
π Lightweight: Minimal resource usage (typically under 2MB memory usage)
π No Configuration Needed: Set-and-forget simplicity, it just works!
β±οΈ Non-Intrusive: No impact on page loading speed
π’ Background Operation: Detection runs without user interaction
π Efficient Algorithm: Optimized detection for speed and accuracy
βοΈ Simple 3-Step Setup:
1οΈβ£ Install from Chrome Web Store
2οΈβ£ Browse normally - detection happens automatically
3οΈβ£ Check Icon: Blue = React, Gray = No React
π Privacy & Security
β’ No Data Collection: We don't collect, store, or transmit any browsing data
β’ Local Processing: All detection happens locally in your browser
β’ No Permissions Beyond Necessity: Only accesses active tab for detection
β’ Open Source Principles: Transparent about detection methodology
β’ GDPR Compliant: Designed with privacy regulations in mind
Reviews
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Permissions (3)
Permissions
scriptingβΉ Can inject scripts into web pages storageβΉ Can store data locally in your browser tabsβΉ Can see your open tabs and their URLs
Details
| Version | 1.0 |
| Updated | Dec 14, 2025 |
| Size | 47.06KiB |
| First Seen | Mar 22, 2026 |
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