For a lot of use cases I find .http files very convenient. Here is a documentation from Microsoft: https://learn.microsoft.com/en-us/aspnet/core/test/http-files?view=aspnetcore-8.0

There is some standard around the .http extension so they work in many IDEs and they can be implemented into CI pipelines. The Microsoft documentation should be enough, though, to get you started.

https://github.com/usebruno/bruno

There is also https://github.com/hoppscotch/hoppscotch but the absence of offline local client was always a blocker

@lorty I feel your pain; I had to switch from Postman to Insomnia because I couldn't use the local application anymore without creating an account, but even Insomnia is pushing to create an account somewhere.

I wonder how hard it'd be to make a PWA and host it on GitHub 🤔 Maybe this would be a good yet-another-hobby-project-ill-never-complete to pick up

Intellijs build in HTTP client is good enough for me to use it for my testing purposes and even for short one-off thing I previously might've done with curl.

Use restfox

https://curl.se/ has been account free since 1998.

Never understood why people keep trying to use proprietary tools for this, especially when curl is so good.

I have a directory of shell scripts I use to test out endpoints. I persist request/response data either with environment variables or regular files. Oh and since these are just shell scripts, it's pretty trivial to do stuff like iterate over a CSV (or JSON array) and make a request for each row, conditionally make requests, or whatever else you want.

Oh and honorable mention goes to jo and jq for making it super easy to make/process JSON data.