I was going to post almost this exact comment. When I've got an Intellij IDE already open, it's the best tool for this job - and that's saying a lot as we've been developing HTTP clients for decades. But I often find myself banging out a curl command with too many -H clauses if nothing Jetbrains is already running.

For those who haven't used the Jetbrains HTTP client recently: maybe two or three years ago it was completely replaced and has been improved continuously since. Give it a try.