⚡ Live Network Tracing • Request Headers • cURL Export • Web Vitals

Master Your Network.
Debug APIs with Instant Clarity

TracePanel captures real-time HTTP, Fetch, XHR requests and Console events right inside your Chrome Side Panel. Inspect headers, replay payloads, copy as cURL, and monitor Core Web Vitals with zero overhead and 100% local privacy.

Install Extension (Free) Live Interactive Demo ↓

Live Developer Console Simulator

Experience how TracePanel inspects live API streams and Web Vitals in real-time.

Method Status Endpoint / URL Type Size Timing
GET /v1/auth/session
Response Preview

            

          

        


        
        

        
        

      

    


    
    

      

        
Engineered for Web Engineers & Power Users

        
Everything you need to observe, benchmark, and debug front-end network traffic.

      


      

        

          
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Real-Time Network Stream

          
Monitor Fetch, XHR, Scripts, CSS, and WebSocket payloads as they happen with precise latency timing breakdowns.

        


        

          
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1-Click cURL & HAR Export

          
Instantly export captured requests to cURL commands for terminal debugging or download full HAR archives for team collaboration.

        


        

          
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Core Web Vitals Audit

          
Measure LCP, INP, CLS, and TTFB directly in your sidebar to diagnose rendering bottlenecks on any live web application.

        


        

          
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Header & Payload Inspector

          
Drill down into Request Headers, Response Headers, Query Parameters, and formatted JSON previews with search highlighting.

        


        

          
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Chrome Side Panel Native

          
Dock TracePanel seamlessly to the side of your active browser window without interrupting your browsing flow or resizing viewport.

        


        

          
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100% Local & Privacy-First

          
All network telemetry and logs remain strictly inside your browser memory. Zero external server tracking or data collection.

        

      

    


    
    

      

        
Frequently Asked Questions

        
Got questions? We've got clear answers.

      


      

        

          
How is TracePanel different from Chrome DevTools Network tab?

          
TracePanel is optimized for the Chrome Side Panel, allowing you to monitor API traffic side-by-side with full-screen websites without opening bulky DevTools windows. It also provides instant 1-click cURL export and live Web Vitals gauges.

        


        

          
Does TracePanel send my network requests to any server?

          
No. TracePanel operates with 100% local in-memory processing. We do not operate external analytics servers, nor do we collect or store any URLs, tokens, or network payload data.

        


        

          
Does it support WebSocket and Fetch API?

          
Yes, TracePanel captures both Fetch and XMLHttpRequest calls, along with WebSocket handshake events and script asset loading.

        


        

          
Is TracePanel free to use?

          
Yes, TracePanel is 100% free and open to everyone under the MIT License by Floor Up Team.