Advanced Techniques Articles

Master Fiddler CLI for automated HTTP debugging, HTTPS decryption, headless capture, and CI/CD integration—step-by-step commands, scripts, and troubleshooting.

Learn how to integrate Fiddler with Selenium WebDriver for real-time HTTP debugging, HTTPS decryption, and automated API validation — a must-know fiddler tutorial for QA engineers.

Master advanced Fiddler automation with PowerShell: connect via COM, filter sessions, export HAR/SAZ, enforce HTTPS decryption, and build reusable debugging workflows.

Master Fiddler's SAZ file format: parse, modify, and automate HTTP(S) captures programmatically. Includes C#, Python, FiddlerCore, and HTTPS decryption tips.

Learn to build custom Fiddler inspectors for advanced HTTP debugging, JSON schema validation, gRPC analysis, and domain-specific traffic inspection.

Learn how to use FiddlerScript for advanced request manipulation — modify headers, transform JSON bodies, spoof clients, and chain with AutoResponder & breakpoints.

Learn how to integrate Fiddler with Selenium WebDriver for real-time HTTP debugging, HTTPS decryption, and API visibility in automated tests.

Learn how to write production-ready Fiddler extensions in C# — from context menus and inspectors to HTTPS decryption handling and auto-responder rules.

Learn how to build production-ready custom Fiddler inspectors for JWT, Protobuf, GraphQL, and more — with step-by-step C# code, troubleshooting tips, and HTTPS decryption safety checks.

A hands-on FiddlerScript tutorial for developers: customize your Fiddler proxy behavior with real-world C# examples for request rewriting, HTTPS decryption, and automated HTTP debugging.