API Sniffer Pro – Monitor, Inspect & Document APIs

Professional API monitoring, documentation, and code generation tool for developers — 100% local, no data collection.

🔥 API Sniffer Pro is the fastest way to monitor, inspect, and document APIs directly inside Chrome. It captures only the API requests you care about using domain-based filtering, giving you a clean and focused API dashboard — without DevTools noise, Postman interceptors, or extra tools. ✔ Runs entirely on your device ✔ No accounts • No tracking • No uploads 🔍 How It Works 1️⃣ Add allowed domains in the Domain Filter inside DevTools 2️⃣ Reload the page or trigger actions 3️⃣ Instantly view clean API calls in real time ✨ What You Can Do With API Sniffer Pro * Monitor XHR, Fetch, and WebSocket API calls in real time * Inspect headers, parameters, cookies, and payloads * Clean API dashboard with domain-based filtering * Pretty JSON viewer with syntax highlighting * Auto-group endpoints by domain and route * Replay API requests instantly * Export APIs to Postman, OpenAPI (Swagger), and Markdown * Generate shareable API documentation * Build API collections automatically 🚀 Perfect For * Frontend Developers * Backend Engineers * QA & Automation Engineers * Reverse Engineers * Students learning APIs 🧪 Why Developers Choose API Sniffer Pro * Cleaner and faster than DevTools Network tab * No dependency on Postman Desktop or interceptors * Zero setup — works instantly after install * 100% on-device processing 🔐 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) communicates with our secure backend. ⚡ PRO Features * Unlimited API logs * Full request and response body capture * Advanced filtering * Request replay * WebSocket inspector * Export to Postman / OpenAPI * Priority support Make API monitoring and documentation effortless — directly inside Chrome.