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What is Fiddler?

It is a free web debugging proxy for any browser, system or platform. It helps you debug web applications by capturing network traffic between the Internet and test computers. The tool enables you to inspect incoming and outgoing data to monitor and modify requests and responses before the browser receives them.
Fiddler is a tool in the API Tools category of a tech stack.

Who uses Fiddler?

Companies
18 companies reportedly use Fiddler in their tech stacks, including DevOps, VTS, and NeoQuant.

Developers
89 developers on StackShare have stated that they use Fiddler.

Fiddler Alternatives & Comparisons

What are some alternatives to Fiddler?
Python
Python is a general purpose programming language created by Guido Van Rossum. Python is most praised for its elegant syntax and readable code, if you are just beginning your programming career python suits you best.
Charles
Charles is a web proxy (HTTP Proxy / HTTP Monitor) that runs on your own computer. Your web browser (or any other Internet application) is then configured to access the Internet through Charles, and Charles is then able to record and display for you all of the data that is sent and received.
Postman
It is the only complete API development environment, used by nearly five million developers and more than 100,000 companies worldwide.
Insomnia REST Client
Insomnia is a powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux.
OpenAPI
It is a publicly available application programming interface that provides developers with programmatic access to a proprietary software application or web service.
See all alternatives

Fiddler's Followers
122 developers follow Fiddler to keep up with related blogs and decisions.