Postman isn't free, it's proprietary and expensive (~19$ per user per month). I don't use VS Code and didn't try VSC plugins but the FOSS alternatives are not

Postman isn't free, it's proprietary and expensive (~19$ per user per month). I don't use VS Code and didn't try VSC plugins but the FOSS alternatives are not up to the same level of quality of Postman. Hoppscotch (formerly Postwoman) has some bugs. The best tool I know and recommend is HTTPie the Desktop version (or CLI version for CLI lovers). It stills partly open-source, not a free software.