Test edge cases, simulate server errors, inject payload modifications, and verify frontend component state directly inside your browser without backend changes.
{
"status": "error",
"code": 500,
"message": "Simulated backend failure"
}
Everything you need to override network requests, inspect active calls, and simulate failures instantly.
Simulate 4xx/5xx HTTP server errors, timeout behaviors, and latency delays effortlessly.
Monitor network calls in active browser tabs, view HTTP headers, payloads, and query parameters.
Modify response body payloads on the fly and trigger immediate page reloads to verify UI rendering.
3 simple steps to intercept and override your web network traffic.
Toggle the interceptor switch on your active Chrome tab.
Specify substring URL patterns, set status codes, and add custom JSON responses.
Reload the page and see frontend components adapt gracefully to mocked API behavior.