If you are testing the backend you need some tools, because you don't see what are you testing. Hoppscotch is a lightweight, web-based API development suite.

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Hoppscotch is a lightweight, web-based API development suite. It was built from the ground up with ease of use and accessibility in mind. It is free to use and as an added perk completely Open Source. But if you will try to use it some restrictions could be found.

API Testing Without Postman?

Bad article, I’m using Hoppscotch and had no issues like the author. I logged in once and I’m logged in all the time, never had to use magic links. I created a team and can share my collection with colleagues. Team has no user limit, where Postman has a limit in free version and it’s extremely low (3 I think). You can work at the same time with your team, however changes don’t refresh automatically. You need to restart Hoppscotch for those to refresh (there is also per folder refresh button).
When I had some issues I created a github issue and it was solved quite fast.
Low effort article that has really no merit other than to show there is an alternative to postman.
EDIT: If I could downvote the article I would

In my view, it’s better to use <code>Rest Client VSC Extension</code> or <code>Thunder Client</code>

Cool! Soetimes my PC get’s overloaded opening Intellij and VsCode together, maybe this can help ease some load! Thanks!