[giancarlostoro]

I have to agree, I've been enjoying insomnia more, especially with the dark theme. I'm also glad the developer makes enough income on it. I also enjoy using Mockoon since it keeps a history of requests I make when I proxy it, very useful. I wish I knew a good proxying API tool that was a little more autonomous and feature full.

[penagwin]

Charles Proxy has been pretty good to me - it's straightforward with little setup. It could use more features but it does exactly what it advertises.

I use it for security testing our website, making sure form data is properly handled, etc. It's also good for reverse engineering apis and can replace files with your own too.

[slumdev]

Try Fiddler if you're on Windows.

[thr0w3345]

Check out burp suite.