The free web debugging proxy for any browser, system or platform.
This is a feature that's present in both the Firefox and Chrome dev tools, and it's incredibly useful. Fiddler is already great, and that would make it so much better :-)
https://textslashplain.com/2015/12/30/whats-new-in-fiddler-4-6-2/ contains a script that adds a Copy cURL command to the Session's context menu.
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