JSON Server vs Newman: What are the differences?
Developers describe JSON Server as "Get a full fake REST API with zero coding in less than 30 seconds. For front-end developers who need a quick back-end for prototyping and mocking". Created with <3 for front-end developers who need a quick back-end for prototyping and mocking. On the other hand, Newman is detailed as "CLI collection runner for Postman". Newman is a command-line collection runner for Postman. It allows you to effortlessly run and test a Postman collection directly from the command-line. It is built with extensibility in mind so that you can easily integrate it with your continuous integration servers and build systems.
JSON Server and Newman can be categorized as "API" tools.
JSON Server and Newman are both open source tools. JSON Server with 41.2K GitHub stars and 3.68K forks on GitHub appears to be more popular than Newman with 3.67K GitHub stars and 524 GitHub forks.