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Fiddler vs WebPageTest

Professional comparison and analysis to help you choose the right software solution for your needs.

Fiddler icon
Fiddler
WebPageTest icon
WebPageTest

Fiddler vs WebPageTest: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Fiddler WebPageTest
Sugggest Score — —
Category Development Network & Admin
Pricing — Open Source

Product Overview

Fiddler
Fiddler

Description: Fiddler is a free web debugging proxy which logs all HTTP(S) traffic between your computer and the Internet. It allows developers to inspect traffic, set breakpoints, and fiddle with incoming or outgoing data. Fiddler can be used to debug traffic from virtually any application that supports a proxy like web browsers, mobile apps, IoT devices, and more.

Type: software

WebPageTest
WebPageTest

Description: WebPageTest is an open-source website performance testing tool. It allows users to test website load speeds from different locations around the world and provides performance metrics like First Contentful Paint, Speed Index, and Time to Interactive.

Type: software

Pricing: Open Source

Key Features Comparison

Fiddler
Fiddler Features
  • HTTP/HTTPS traffic interception and inspection
  • Session analysis and manipulation
  • Breakpoints and conditional breakpoints
  • HTTPS traffic decryption
  • Automatic request resending
  • Scripting support
WebPageTest
WebPageTest Features
  • Website load speed testing
  • Waterfall charts
  • Video capture
  • Content breakdown
  • Custom metrics
  • Scripting
  • API access

Pros & Cons Analysis

Fiddler
Fiddler
Pros
  • Free and open source
  • Powerful debugging features
  • Supports all major platforms
  • Large user community and documentation
Cons
  • Steep learning curve
  • Can slow down traffic
  • Potential privacy concerns with HTTPS decryption
  • Limited native mobile app support
WebPageTest
WebPageTest
Pros
  • Free and open source
  • Wide range of detailed metrics
  • Global testing locations
  • Easy to use interface
  • Flexible customization
Cons
  • Can be resource intensive
  • Limited testing frequency on free tier
  • Setup requires some technical knowledge

Pricing Comparison

Fiddler
Fiddler
  • Not listed
WebPageTest
WebPageTest
  • Open Source

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Learn More About Each Product

Fiddler
Fiddler
Reviews, pricing & alternatives →
WebPageTest
WebPageTest
Reviews, pricing & alternatives →

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