Download Requestly for Desktop
Requestly is now a desktop-first API client built for developers who want a powerful tool for building, testing, and debugging APIs. Available on Mac, Windows, and Linux.
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HTTP interceptor
Need HTTP interception? Requestly's Interceptor is still available.
Intercept, Modify & Debug in Real-Time
Capture and control network requests and responses: modify headers, body, query params, and redirect APIs on the fly
Mock APIs & Simulate Scenarios Without Backend
Create mock responses, simulate errors, delays, or different server behaviors: unblock frontend when the backend isn't ready.
No Proxy Setup: Works Directly in Your Browser
Lightweight and easy to use, runs inside your browser with zero proxy/VPN configuration.
System-Wide Interception Across Apps
Capture and control HTTP/HTTPS traffic beyond the browser
Advanced Debugging with Full Traffic Control
Tweak headers, query params, request body, or API responses, simulate failures, delays, or inject scripts
Switch Environments & Mock Flows Instantly
Use rules like redirect, replace, map local/remote to swap APIs, run local code on production, or mock third-party services