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Requestly offers two ways to intercept and modify HTTP traffic. Use the right one for your workflow — or use both in combination.

Browser Extension

Best for: Intercepting and modifying traffic from inside the browser — fast setup, no configuration.

Desktop App

Best for: System-wide traffic interception — desktop apps, mobile devices, simulators, terminal, Node.js.
Can’t decide? Both experiences sync your rules through Team Workspaces, so you can use whichever suits your current task.

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Feature Comparison

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Platform Availability

FeatureBrowser ExtensionDesktop App
Supported BrowsersChrome, Firefox, Edge, Brave, Arc, Vivaldi, OperaN/A
Supported OSAny OS with supported browserWindows, macOS, Linux
InstallationInstall from browser storeDownload installer
Launch SpeedFast (in browser)Fast (standalone app)

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Interception Scope

FeatureBrowser ExtensionDesktop App
Intercept browser traffic✅ Supported✅ Supported
Intercept desktop app traffic❌ Not supported✅ Supported
Intercept mobile devices❌ Not supported✅ Supported
Intercept iOS/Android simulators❌ Not supported✅ Supported
Intercept Node.js apps❌ Not supported✅ Supported
Intercept terminal/CLI traffic❌ Not supported✅ Supported
System-wide proxy❌ Not supported✅ Supported

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HTTP Rules

FeatureBrowser ExtensionDesktop App
Modify Headers✅ Supported✅ Supported
Modify Request/Response Body✅ Supported✅ Supported
Modify Query Params✅ Supported✅ Supported
Redirect Rules✅ Supported✅ Supported
Replace Strings✅ Supported✅ Supported
Delay Requests✅ Supported✅ Supported
Cancel Requests✅ Supported✅ Supported
Insert Scripts✅ Supported✅ Supported
Map Local / Map Remote✅ Supported✅ Supported
Modify User Agent✅ Supported✅ Supported

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Network Inspection & Sessions

FeatureBrowser ExtensionDesktop App
Network Traffic Table✅ (via DevTools)✅ Supported
Session Recording✅ Supported✅ Supported
HAR File Import✅ Supported✅ Supported
Save logs to local file❌ Not supported✅ Supported

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Collaboration & Workspaces

FeatureBrowser ExtensionDesktop App
Local Workspace❌ Not available✅ Supported
Team Workspaces✅ Supported✅ Supported

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Decision Guide

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Choose the Browser Extension if you:

  • ✅ Only need to intercept traffic inside a browser
  • ✅ Want a zero-configuration setup
  • ✅ Debug web apps during frontend development
  • ✅ Work mostly with JSON/HTML responses in the browser

Set up the Browser Extension

Install and get started in under a minute

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Can I Use Both?

Absolutely. Many people use both:
  • Browser Extension for quick in-browser debugging during frontend work
  • Desktop App for mobile, native-app, and system-wide interception
Your rules sync across both when you use Team Workspaces, giving you flexibility to switch based on your current task.

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Need Help Choosing?

Getting started

Choose a path and set up Requestly

Browser Extension setup

Install and configure the browser extension

Desktop App setup

Install and configure the desktop app

Team Workspaces

Sync your work across platforms