GraphQL Request Mocker

Lightweight Chrome extension to intercept GraphQL requests and return mock responses without hitting your backend APIs. Perfect for developers and QA teams testing UI components independently: 🎯 KEY FEATURES: - Match GraphQL requests by x-operation header, operationName, or URL - Create, edit, and toggle rules in seconds via popup UI - Mock success scenarios, errors, and edge cases - View request logs with operation details - Tab-specific rules (pin to current tab only) - Environment/host scoping (test on staging vs production separately) - Patch mode: change values in real responses without mocking - Load example scenarios for common operations ⚡ USE CASES: ✓ Test error handling without breaking your backend ✓ Test UI loading states with custom delays ✓ Test unavailable features/products ✓ Develop UI components independently from API ✓ Load performance testing with slow responses ✓ Validate edge cases and error scenarios 🛠️ HOW IT WORKS: 1. Click the extension icon 2. Create a rule (choose operation name/header, mock response) 3. Refresh your page 4. Extension intercepts matching requests and returns your mock data 📋 SUPPORTED OPERATIONS: Works with any GraphQL operation—Product queries, mutations, subscriptions, etc. Built with TypeScript • No backend required • Fully offline • Open source Perfect for RH (Restoration Hardware) development workflows and any team using GraphQL.