Tracer v1.0 is live

Inspect any website. Run JS from your pocket.

The browser console that lives on your phone. Debug, test, and inspect elements on the go without needing a laptop.

Free to download. No signup required.

🔒https://example.com

⚠️ Mixed Content...

>document.title

<"Example Domain"

>window.innerWidth

<390

Try it yourself

Experience the power of Tracer right here in your browser. Run JavaScript, inspect elements, and view network requests.

Execute JavaScript

Run arbitrary JavaScript code on any webpage. Test snippets, modify the DOM, or check global variables directly from your mobile device.

✓ Full console API support
✓ Error highlighting and stack traces
✓ Command history

Console

<Tracer Console v1.0.0

<Type a JavaScript expression and press Enter.

Inspect Elements

Tap any element on the page to view its HTML structure, CSS classes, and computed dimensions.

Welcome to my site

This is a sample card component that you can inspect.

Elements Panel

Click "Inspect Element" and select an item to view its properties.

⚠️ [Deprecation] SharedArrayBuffer will require cross-origin isolation...

>console.log("App initialized")

<App initialized

>fetchUserData(42)

<Promise {<pending>}

❌ Uncaught TypeError: Cannot read properties of undefined (reading 'map')

Network & Resources

Monitor all network activity including XHR, Fetch, scripts, and images. Identify failing requests or slow-loading resources.

✓ View request/response headers
✓ Check status codes and timings
✓ Inspect local storage and cookies

Who is Tracer for?

Developers

Debug mobile-specific issues without connecting your phone to a laptop. Test responsive designs and mobile APIs on the fly.

QA Engineers

Verify tracking pixels, check network payloads, and capture console errors directly from the test device to attach to bug reports.

Support Teams

Investigate customer-reported issues on mobile devices. Check console logs and network failures to escalate to engineering.

Frequently Asked Questions

Does Tracer work on iOS and Android?

Yes, Tracer is available for both iOS (via the App Store) and Android (via Google Play).

Can I inspect elements behind a login?

Yes. Tracer acts as a fully functional browser. You can log into any website normally, and then open the console to inspect the authenticated state.

Is it safe to run JavaScript?

Tracer executes JavaScript in the context of the webpage you are currently viewing, exactly like the desktop browser console. It has the same security boundaries as a standard browser.

Can I save my snippets?

Yes, Tracer includes a snippet manager where you can save frequently used JavaScript code and execute it with a single tap.

Ready to start debugging?

Download Tracer today and bring the power of desktop developer tools to your mobile device.