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Fiddler Classic

The most comprehensive collection of technical resources, relevant community topics and http/s debugging how-to articles to help you get the most from Fiddler Classic.

To deliver you the best Fiddler Classic experience, tell us what you need help with:

  • Describe your problem in a single sentence.
  • Be specific. For example, use "how to mock HTTPS requests" or "how to inspect a http request" instead of "fiddler classic issue".

*Please be aware that Fiddler Classic is not in active development and offers no commitments for releases, patches or tech support. By using this product, you assume all associated risks. We recommend upgrading to Fiddler Everywhere.

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Progress Is Pushing the Envelope in Customer Support

Progress won the 2020 “Pushing the Envelope” achievement by the Association of Support Professionals for our customer-centric support features, designed to speed up the resolution of customer inquiries. We are honored to be recognized among the best support websites of 2020 and will continue our dedication to deliver a superb experience.

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Ten Best Web Support Sites 2019 Badge

Finding the Answers You Need is Our Top Priority

Progress was named one of the "Ten Best Support Sites" by the Association of Support Professionals. Our commitment to you is to continue improving your experience across the site and strive to provide you with the information you need in the ways you need it. Read why Telerik Support is considered among the best.