View All HTTP Requests

View all HTTP requests compared with Fiddler and WebPageTest
View all HTTP requests	Fiddler	WebPageTest
Capture method: The page states that it simulates a web browser visiting the submitted URL and captures each request made. You only supply a URL.	Capture method: Fiddler is a web debugging proxy that captures traffic from your own machine or from remote devices. It supports multiple protocols, advanced filters and rules that modify traffic.	Capture method: Tests run on real browsers from several global locations under customizable network conditions. A scripting language supports multi-step tests, request blocking and custom headers.
Output: It reports the total number of HTTP requests and the time taken to load the URL fully. The page does not describe usage limits or a login.	Output: Requests and responses can be filtered and fully modified, from header changes to complete rewrites. FiddlerScript lets you write custom rules to modify or block requests.	Output: It tracks Core Web Vitals and breaks down metrics such as DNS, TCP and TLS. Video capture compares the visual experience with technical measurements, and JavaScript run at the end of a test can collect custom metrics.
Licence and cost: The page describes the tool as free, and says it is powered by the HTTP Tracker API from APIVoid.	Licence and cost: Fiddler Everywhere is licensed for professional and commercial use. It is a paid subscription with per-seat licensing in Lite, Pro and Enterprise tiers, billed monthly or annually (Enterprise annual only). Fiddler Classic remains available for eligible non-commercial use under an updated EULA.	Licence and cost: The source code is available under the Polyform Shield license. The vendor offers a free start without a credit card, while Pro and Enterprise plans add an API and other tools. No prices are given on the page consulted.
Platform and installation: It is used from a web page, so nothing is installed.	Platform and installation: Fiddler Everywhere runs on Windows, macOS and Linux. Fiddler Everywhere Reporter is a free capture tool that needs no installation, and FiddlerCore is an embeddable .NET library.	Platform and installation: WebPageTest was created and open-sourced by Patrick Meenan in 2008 and acquired by Catchpoint in 2020. It is used as a hosted service.

View all HTTP requests compared with Fiddler and WebPageTest

View all HTTP requests

Fiddler

WebPageTest

Capture method: The page states that it simulates a web browser visiting the submitted URL and captures each request made. You only supply a URL.

Capture method: Fiddler is a web debugging proxy that captures traffic from your own machine or from remote devices. It supports multiple protocols, advanced filters and rules that modify traffic.

Capture method: Tests run on real browsers from several global locations under customizable network conditions. A scripting language supports multi-step tests, request blocking and custom headers.

Output: It reports the total number of HTTP requests and the time taken to load the URL fully. The page does not describe usage limits or a login.

Output: Requests and responses can be filtered and fully modified, from header changes to complete rewrites. FiddlerScript lets you write custom rules to modify or block requests.

Output: It tracks Core Web Vitals and breaks down metrics such as DNS, TCP and TLS. Video capture compares the visual experience with technical measurements, and JavaScript run at the end of a test can collect custom metrics.

Licence and cost: The page describes the tool as free, and says it is powered by the HTTP Tracker API from APIVoid.

Licence and cost: Fiddler Everywhere is licensed for professional and commercial use. It is a paid subscription with per-seat licensing in Lite, Pro and Enterprise tiers, billed monthly or annually (Enterprise annual only). Fiddler Classic remains available for eligible non-commercial use under an updated EULA.

Licence and cost: The source code is available under the Polyform Shield license. The vendor offers a free start without a credit card, while Pro and Enterprise plans add an API and other tools. No prices are given on the page consulted.

Platform and installation: It is used from a web page, so nothing is installed.

Platform and installation: Fiddler Everywhere runs on Windows, macOS and Linux. Fiddler Everywhere Reporter is a free capture tool that needs no installation, and FiddlerCore is an embeddable .NET library.

Platform and installation: WebPageTest was created and open-sourced by Patrick Meenan in 2008 and acquired by Catchpoint in 2020. It is used as a hosted service.