Token Inspector

🔥 Token Inspector — A Powerful JWT Debugging Tool for Developers Instantly detect, decode, and analyze JSON Web Tokens (JWTs) from anywhere in your browser. Token Inspector is a lightweight yet powerful Chrome extension designed specifically for developers working with authentication, APIs, and modern web apps. It automatically scans requests, responses, cookies, and local storage to detect JWTs in real time — then beautifully formats them for quick inspection. No more copying tokens to external sites, risking security, or digging through DevTools. Token Inspector brings everything you need right inside your browser, safely and instantly. 🚀 What You Can Do with Token Inspector 🔍 Auto-Detect JWTs Across the Entire Browser Token Inspector continuously monitors: Request headers Response headers Cookies Local/session storage Manually pasted tokens Whenever a token is found, it appears instantly in your extension panel or devtools tab. 🧩 Decode JWTs with One Click Automatically decode: Header Payload Claims (sub, iss, iat, exp, roles, custom fields) Expiration time (with live countdown) Tokens are formatted in a clean, readable UI that’s made for developers. 🎯 Group Tokens by Domain Identify where each token came from with intelligent grouping: By hostname By source type (request, response, cookie, storage, manual input) Perfect for debugging complex multi-domain apps. ⚠️ Detect Expired or Invalid Tokens Easily catch issues with: Expired tokens Missing claims Encrypted JWEs (with warnings) Malformed or invalid JWTs Ideal for authentication debugging and API troubleshooting. 🌓 Dark & Light Theme Support Work comfortably with a theme that adapts to your environment. Syncs your choice across sessions. ♻️ Manual Token Tools Paste any JWT into the extension to decode it instantly, no external websites, no security risks. 🔐 Security First — 100% Local Processing Your security is our priority. ✅ Token Inspector never sends any data outside your browser ✅ No analytics ✅ No tracking ✅ No remote servers ✅ No external APIs Everything is handled locally in memory, and you can clear all detected tokens at any time. 👨‍💻 Built for Developers Token Inspector is perfect for: 1) Backend/API developers 2) Frontend engineers 3) Security engineers 4) QA testers 5) DevOps teams Anyone working with JWT-based authentication 🛠️ Why Developers Love Token Inspector Saves time debugging auth issues Eliminates the need for external JWT websites Works automatically without setup Clean, elegant UI Accurate, reliable token decoding Lightweight and performance-friendly 🧩 Extension Features at a Glance Automatic JWT detection DevTools panel integration Domain-based grouping Token expiration countdown Clipboard-safe manual decoding Clear tokens button Theming support Real-time UI updates Works on any website ⭐ Completely Free & Open for Developers Token Inspector is built by developers, for developers. No paid plans. No ads. No nonsense.