Network Overrides API (DevTools)

Debugging tool that intercepts and overrides network API responses from DevTools panel or popup. For developers only.

Network Overrides DevTools is a lightweight Chrome DevTools extension that allows developers to override, mock, and debug network requests directly from the browser. Built for frontend developers, QA engineers, and testers, this extension helps speed up development workflows by enabling local response overrides without changing backend services. Key Features ✓ Override network requests with local files ✓ Mock API responses instantly ✓ Redirect requests to different environments ✓ Simulate backend changes during frontend development ✓ Debug production issues more efficiently ✓ Work directly inside Chrome DevTools ✓ Lightweight and easy to use Common Use Cases • Frontend development without backend dependencies • API mocking and testing • Debugging production APIs • QA testing and edge-case simulation • Rapid prototyping • Offline/local development workflows How It Helps Instead of waiting for backend updates or modifying server code, developers can instantly override responses and test UI behavior directly in the browser. This improves: • Development speed • Debugging workflow • Team collaboration • Testing flexibility Developer Friendly Network Overrides DevTools is designed to integrate naturally into existing Chrome DevTools workflows with minimal setup and a clean user experience. Open Source GitHub Repository: https://github.com/vannt-dev/network-overrides-devtools Privacy This extension does not collect or share personal user data.