Welcome to Fiddler Everywhere!

Progress® Telerik® Fiddler Everywhere is a web-debugging tool that monitors, inspects, edits, and logs all HTTP(S) traffic, and issue requests between your computer and the Internet, and fiddles with incoming and outgoing data. It is a high performance, cross-platform proxy for any browser, system, or platform.

Fiddler Everywhere main screen

Key Features

Fiddler Everywhere delivers a range of handy and user-friendly features whose number and further development are not limited by the list in this section—the Fiddler team constantly invests efforts to improve the performance and add more value to the existing web-debugging tool, and build on top of its available features.

Traffic Inspection

Fiddler Everywhere inspects and logs all HTTP(S) traffic between your computer and the Internet, and enables you to capture traffic from virtually any application that supports a system proxy. Read more about capturing HTTP(S) traffic with Fiddler Everywhere...

Traffic Analysis

Fiddler Everywhere provides an HTTP(S) traffic-analyzing functionality, which renders the captured information in a structured way and visualizes various statistical data for one or more captured sessions. You can also decrypt secure traffic and save, receive, and share captured traffic with collaborators. Read more about inspecting and modifying traffic with Fiddler Everywhere...

Request and Response Mocking

Fiddler supports the mocking and modification of requests and responses on any application. In this way, you can quickly and easily change HTTP(S) requests and responses without the need to update the code. Read more about mocking requests and responses with Fiddler Everywhere...

API Composing

Fiddler Everywhere comes with an API Composer, which allows you to test APIs by creating and sending requests as well as save and share composed APIs. You can use the API composing feature both when developing new APIs and when testing existing APIs. Read more about creating and organizing API requests with Fiddler Everywhere...

Cross-Platform Support

Fiddler Everywhere provides platform-agnostic compatibility that enables you to install, configure, and run the web-debugging tool on Windows, macOS, and Linux system-operating machines. Read more in the dedicated step-by-step guides:

Fiddler Everywhere on Mobile

Fiddler Everywhere enables you to also capture and inspect traffic on devices running on iOS and Android.

Styling Options

Fiddler Everywhere delivers a modern, intuitive UI and a set of popular themes. Read more about modifying the appearance of the Fiddler web-debugging tool...

Trial Version and Commercial License

Fiddler Everywhere offers a 30-day trial with a full-featured version of the tool—no restrictions! What’s more, you are eligible for complete technical support during your trial period in case you have any questions. To sign up for a free 30 day trial, go here. In addition, the Fiddler Everywhere dashboard panel provides information and options for managing your subscription plans.

To use Fiddler Everywhere commercially, you need to purchase a license. The terms of use are fully described in the Fiddler Everywhere License Agreement.

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