The interface is divided into different tabs where you can access statistics for each website you visit. It also has an 'inspector' for viewing the content of each request and corresponding response in different formats.
You can also set filters for unwanted traffic to save time, or take advantage of the time bar, which shows you the transfer for a specific HTTP session.
Fiddler is a comprehensive tool that, despite its small size, includes a number of useful features for anyone who has medium to advanced knowledge on the subject.
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Fiddler Everywhere is a high performance, cross-platform web debugging proxy for any browser, system or platform. It is a web debugging tool that logs all HTTP(S) traffic between your computer and the Internet, inspects and edits traffic, issue requests, and fiddle with incoming and outgoing data.
HTTP(S) traffic Inspection & Analysis
Fiddler Everywhere logs all HTTP(S) traffic between your computer and the Internet. It captures traffic from virtually any application that supports a system proxy.
Request and Response Mocking
Fiddler support mocking or modifying request and responses on any application. It’s a quick and easy way to change HTTP(S) requests and responses without changing the code.
API Composing
Reverse proxy and HTTP proxy and monitor that displays all HTTP(S) traffic to/from your. Available for Windows as a download from the developer website. There are also beta versions available for Mac OS, and Linux. Is there a better alternative? No, there isn’t a better alternative to Fiddler. Wireshark and Firebug are potential alternatives. These two do not compare when it comes to functionality and usability.
Use Fiddler API Composer to test APIs by creating and sending requests. Useful while developing new APIs or when testing existing APIs.
Key Features
- Compatible with MacOS, Windows, and Linux.
- Inspect web traffic (HTTP & HTTPS).
- Decrypt secure traffic (HTTPS).
- Save, share, and receive captured traffic with collaborators.
- Mock requests and responses
- Modify response
- Compose API requests
- Save composed API requests
- Fiddler Everywhere Pro features with extended sharing and collaboration options.
Fiddler Everywhere Pro
All Fiddler Everywhere features are available in both the Free and the Pro version. However, the Fiddler Everywhere Pro version extends the free version's sharing and collaboration options. The free version has some limitations related to sharing quotas. Refer to the table below for a detailed comparison of the Free versus Pro versions.
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Features | Free | Pro |
---|---|---|
Capture and Inspect Traffic | Unlimited | Unlimited |
Creating Composer Requests | Unlimited | Unlimited |
Using Auto Responder Rules | Up to 5 enabled rules | Unlimited |
Creating Saved Sessions entries * | Up to 5 sessions | Unlimited |
Sharing Saved Sessions | Up to 5 session (with up to one user) | 1000 session |
Shared Session Size | Max 5 MB | Max 50 MB |
Email Support | - | Unlimited* |
*subject to fair usage policy. Learn more about the support offering here.
A Session in Fiddler Everywhere is a term that describes an entry that holds single or multiple requests and responses (captured traffic). Saved session entries are listed in the Sessions list and can also be exported as SAZ archive.
Trial version
To try Fiddler Everywhere PRO for FREE for 30 days, press the Try PRO button and press Start Trial. An Upgrade Successful prompt window confirms your trial subscriptions. The trial activation does not require a credit card or any other additional information.
Release history
To learn more about the release history, visit Release History Page
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Installation
Download the latest Fiddler Everywhere.To learn how to install Fiddler Everywhere, visit the Installation section.
Documentation
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We believe documentation is best when the content is a product of collaboration between the builders and consumers of that product. Everybody can play a role in making our documentation better, and we encourage you to help us with that task in the way that you choose:

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Send FeedbackUse the Was this article helpful? functionality to give us feedback and ideas on how we can improve the documentation. Alternatively, you could request a feature or report a bug using the Fiddler Everywhere Feedback Portal.
Create an IssueIf you find an issue with our docs that needs addressing, the best way to let us know is by creating an issue in our Github repository. When creating an issue, please provide a descriptive title, be as specific as possible, and link it to the documentation article. If you can provide a link to the closest anchor to the issue, that is even better.
Send a Pull RequestCreating an issue is great, but what we love are pull requests. So, if you find an issue in the docs, or even feel like creating new content, we’d be happy to have your contributions!
In order to do this, you must fork our documentation and submit a pull request. That way, you may contribute an update exactly where you found the error. After that, our technical writing team will need to approve your change request. Please use only standard markdown. For more detailed instructions, please follow the contribution instructions published in GitHub. You could directly initiate a pull request by using the Improve this article functionality.
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License
Licensing agreement and detailed information about the different licenses and which one you should acquire is available in the Licensing section.