There certainly are plenty of Postman alternatives out there, one that I've used before is Milkman: https://github.com/warmuuh/milkman It's built on a plugin architecture, does gRPC, GraphQL, JDBC, Ws, et.al. Other plugins allow sharing of workspaces to various services. Written in Java/JavaFX, brew or chocolatey install. - Source: Hacker News / over 2 years ago

[1] https://github.com/warmuuh/milkman Edit: I love these threads. You read so many things and Frameworks and random stuff that you really learn in what silo you are actually living. - Source: Hacker News / about 3 years ago

I built milkman[1], an alternative to postman because I wanted one tool to integrate with the whole web development stack. One tool that contains my SQL, rest and grpc calls to easily debug issues. Also nearly none of those kind of tools that existed supported SSE which I also use in my day to day work. [1] https://github.com/warmuuh/milkman. - Source: Hacker News / about 3 years ago

Background: I am the creator of Milkman (alternative to postman) and was wondering if an RSocket plugin would actually be useful... Source: about 3 years ago

I been using 'Advanced Rest Client' (ARC) https://install.advancedrestclient.com/ No accounts required, offline, open source, A little bloated using electron but its multiplatform and a desktop client. - Source: Hacker News / 8 months ago