Fiddler is a free and open-source packet analyzer. It is used for network troubleshooting, analysis, software, communications protocol development and education. Fiddler captures HTTP and HTTPS traffic data between browsers and servers. These data are extremely valuable for troubleshooting, performance turning and system monitoring. This article is a step by step tutorial to guide how to use Fiddler and capture HTTP Traffic.
Capturing of HTTP and/or HTTPS traffic may include private or confidential information, such as usernames, passwords or bank info. Use caution when entering in sensitive data while Fiddler is configured to capture traffic. If possible, use test or dummy data instead of confidential data while using Fiddler.
If you are a web developer, Fiddler is the must one in your tool kits.
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