Fiddler Classic is a powerful web debugging tool that logs all HTTP(s) traffic between a server and its client in order to provide a complete picture of how different responses work. It allows you to analyze and examine HTTP and HTTPS traffic from browsers and desktop applications. It allows you to see all communication at a glance, or to dig deeper and see more.
By monitoring all the HTTP requests and responses, you can quickly identify communication errors in your application's infrastructure. It produces detailed coverage of an HTTP request, including its headers, body, cookies, and attachments. With Fiddler, you can analyze how web pages are performing and define security policies, as well as improve developer productivity.
- Web Debugging
- Performance Testing
- HTTP(S) traffic Inspection & Analysis
- Share captured traffic with collaborators
- Works seamlessly with any browser, or application
- Decrypt secure traffic (HTTPS)
- Web Session Manipulation
- Security Testing
- Customizing Fiddler
- Compose API requests
Download Fiddler Classic Edition
Note: Fiddler 5 requires to download .NET Framework 4+.
Last Update: September 09, 2021
Current Version: 5.0.20204.45441
Languages: Multiple Languages
Supported Operating Systems:
Windows XP / Vista / 7 / 8 / 8.1 / 10 (32-Bit, 64-Bit)