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Requestly: A well-documented Telerik Fiddler alternative

Fiddler is a mature web-debugging proxy, but it runs at the system level: certificate installs, proxy config, and VPN conflicts come with it. Requestly gives you the same intercept-and-modify power browser-native, cross-platform, with none of the proxy ceremony.

Things Requestly does differently

Browser-native interception, cross-platform reach, and GraphQL support, without the system-level proxy setup Fiddler requires.

01

Browser-native, so it stays fast and lightweight

Requestly lives inside the browser and uses native Chrome APIs, which makes it much faster and more lightweight than Fiddler, with no system-level proxy or VPN issues to work around.

  • Runs in the browser on native Chrome APIs
  • Faster and more lightweight than Fiddler
  • Zero proxy and VPN issues
02

A gentle learning curve, with the docs to match

Requestly is designed from the ground up for a shallow learning curve. Detailed documentation, a learning academy, interactive guides, and video tutorials get you to power-user level from day one.

  • Detailed documentation and a learning academy
  • Interactive guides and video tutorials
  • Built for a shallow learning curve
03

Cross-platform: browser extension and desktop app

Requestly ships as both a browser extension and a desktop application, covering Chrome and Chromium browsers, Firefox, Safari, Edge, Brave, Opera, and Vivaldi, plus Windows, macOS (Apple and Intel), and Linux.

  • Extension for Chrome, Firefox, Safari, Edge, Brave, Opera, and Vivaldi
  • Desktop app for Windows, macOS (Apple and Intel), and Linux
  • One tool across every major platform
04

Team collaboration built in

Create shared workspaces and synchronize rules across your team, so everyone has instant access to the rules you have established and no one duplicates work.

  • Shared workspaces for your team
  • Rules synchronized across team members
  • No duplicated work
05

Enterprise-ready security and control

Requestly prioritizes security and organizational control with SSO, team management, SLAs, SOC-II compliance, reporting and analytics, and role-based access control.

  • SSO and role-based access control
  • SOC-II compliance and SLAs
  • Team management, reporting, and analytics
06

First-class GraphQL support

Requestly offers dedicated support for GraphQL APIs. Fiddler is designed for REST and struggles with GraphQL's schema-based request structure, forcing extra filtering to isolate specific operations within a request.

  • Dedicated support for GraphQL APIs
  • Handles GraphQL's schema-based structure
  • No extra filtering to isolate operations

Requestly vs Fiddler, feature by feature

FeatureRequestlyFiddler
Zero proxy & VPN issuesYesNo
LightweightYesNo
Modify HTTP headersYesYes
Modify API responseYesYes
Modify URLYesYes
GraphQL supportYesNo
Inject scriptsYesNo
Page-level filtersYesNo
CollaborationYesNo
BreakpointsYesYes
Mock serverYesNo
Capture browser sessionsYesNo
API clientYesYes
Enterprise-readyYesNo
SupportYesYes

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Free · macOS, Windows & Linux