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Find the right tutorials and guides for your Fiddler debugging goals
Getting Started
Install Fiddler, configure your proxy, and capture your first HTTP/HTTPS traffic
Browse articles →HTTP/HTTPS Capture
Intercept and inspect HTTP and HTTPS traffic, decrypt SSL, and analyze web sessions
Browse articles →Request Modification
Modify requests and responses on the fly using AutoResponder, FiddlerScript, and breakpoints
Browse articles →Performance Analysis
Measure page load times, identify bottlenecks, and optimize web application performance
Browse articles →Mobile Debugging
Debug iOS and Android app traffic by routing mobile devices through Fiddler proxy
Browse articles →API Testing
Compose and replay API requests, test REST endpoints, and validate responses in Fiddler
Browse articles →Advanced Techniques
FiddlerScript, custom extensions, .NET debugging, and advanced proxy configuration
Browse articles →Troubleshooting
Fix common Fiddler issues: certificate errors, connection problems, and proxy conflicts
Browse articles →Looking for Something Specific?
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