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 — Smart API Monitoring Inside Chrome DevTools API Sniffer Pro is the fastest way to monitor, inspect, debug, 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 Network tab noise, Postman interceptors, or external tools. ✔ Runs entirely on your device ✔ No accounts required ✔ No tracking ✔ No data uploads # 🔍 How It Works 1️⃣ Add allowed domains inside the DevTools Domain Filter 2️⃣ Reload the page or trigger actions 3️⃣ Instantly view clean API calls in real time No setup required. # ✨ Core Features ### Real-time API capture Monitor: • Fetch requests • XHR requests • WebSocket traffic • background API calls directly inside Chrome DevTools. ### Domain-based filtering (unique feature) Capture only the APIs you want. Avoid noise from: analytics scripts CDNs third-party trackers browser extensions Focus only on your application APIs. ### Clean API dashboard View structured request data: • headers • query parameters • cookies • payloads • response bodies • status codes • timing metrics with a developer-friendly interface. ### Pretty JSON viewer Automatically formats responses with: syntax highlighting collapsible nodes searchable structure for faster debugging. ### Request replay Modify and resend API requests instantly without leaving DevTools. Perfect for: testing endpoints debugging responses verifying fixes ### Export APIs to multiple formats Export captured requests as: • Postman collections • OpenAPI (Swagger) documentation • HAR files • JSON • Markdown summaries Generate documentation directly from real API traffic. ### Automatic API documentation builder Create structured API collections automatically from captured requests. Useful for: team sharing QA validation integration documentation reverse engineering workflows ### Performance insights Quickly identify: slow endpoints large payload responses unexpected failures inside your API traffic timeline. ### Bug report export bundles Generate shareable debugging bundles including: captured requests environment metadata console logs screenshots for faster issue reproduction. # 🚀 Perfect For Frontend Developers Backend Engineers Full-stack Developers QA & Automation Engineers Reverse Engineers Students learning APIs # 🧪 Why Developers Choose API Sniffer Pro Cleaner than Chrome DevTools Network tab Faster than Postman interceptors Works instantly after installation No external proxy setup required 100% local processing Capture → Inspect → Replay → Export — in one workflow # ⚡ PRO Features Unlock advanced debugging workflows with API Sniffer Pro: • Unlimited API logs • Full request & response body capture • Advanced filtering controls • Request replay tools • WebSocket inspector • Export to Postman / OpenAPI / Markdown • Priority support Designed for professional API debugging environments. # 🔐 Privacy-First Design API Sniffer Pro runs entirely locally in your browser. It does **not collect or transmit API data** externally. All captured API logs remain on your machine. Only license validation (for PRO users) communicates securely with our backend. # 📦 Built For Modern API Workflows Ideal for working with: REST APIs GraphQL APIs frontend debugging backend integration testing QA automation performance troubleshooting API documentation generation # ⭐ Support Development If API Sniffer Pro improves your workflow, your contribution directly supports ongoing development and maintenance of developer-focused tools. .