API Sniffer Pro

Professional API monitoring, documentation, and code generation tool for developers

🔥 API Sniffer Pro — The Fastest Way to Discover, Debug & Document APIs API Sniffer Pro only captures requests that match the domains you enter in the Domain Filter inside DevTools. API Sniffer Pro automatically captures only configured domain's XHR, Fetch, and WebSocket calls made by webpage, giving developers a clean, real-time API dashboard. No more noise from DevTools. No need for Postman Interceptor. No extra tools. ✨ What You Can Do With API Sniffer Pro View all API requests in real time Inspect headers, params, cookies, and payloads Pretty JSON viewer with syntax highlighting Auto-group endpoints by domain and route Replay requests instantly Export to Postman, Swagger (OpenAPI), and Markdown Capture WebSocket messages Generate shareable API documentation Build API collections automatically 🚀 Perfect For: Frontend Developers Backend Engineers QA Testers Automation Engineers Reverse Engineers Students learning APIs 🧪 Why Developers Love It Cleaner and faster than DevTools Network tab No dependency on Postman Desktop 100% on-device processing (no data ever uploaded) Helps debug APIs in seconds A must-have tool for daily development 🔐 Privacy First API Sniffer Pro does NOT collect or transmit any personal data. All API logs remain on your machine. Only license validation (for PRO users) calls our secure backend. ⚡ PRO Features Unlimited API logs Request replay WebSocket inspector Export to Postman/OpenAPI Advanced filtering Full request/response body capture Priority support Make API debugging effortless — directly inside Chrome.