Requestly
Intercept and modify HTTP requests in the browser — learn Requestly.
Requestly is a browser extension and desktop app that lets you intercept, redirect, and modify HTTP requests without touching backend code. Essential for frontend debugging, API mocking, and testing different environments.
What you will learn
Skills you will gain
- Installing and setting up Requestly as a browser extension
- Redirect rules: routing requests to different URLs or localhost
- Modifying request and response headers
- Response mocking: return custom JSON without a real API
- Using Requestly for A/B testing and feature flag simulation
Why learn it
Real-world impact
Used by developers at Google, Facebook, Amazon, and Microsoft
Saves hours of backend setup during frontend development
Free tier covers all core functionality for individual developers
Learning resources
Where to start
Requestly Documentation
Official documentation and tutorials from the Requestly team. Best place to start and the authoritative reference.
Read docs →Requestly Video Tutorial
Hands-on video tutorial to get you building with Requestly fast. Learn by watching and coding along.
Watch on YouTube →Ecosystem
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