Postman is one of my favourite Chrome extensions, it’s so helpful. If you work with REST APIs, you need postman or something like it. Yes, you could just use curl, but you could also not hate your life :)
Postman lets you easily test your REST endpoints by letting you name and save your calls and add them to collections. You can save your authentication data too and you can parameterize your calls so you can test the same call on local and then staging by just switching environments in the dropdown. Another really cool thing Postman added lately is the ability to sync your account across different computers. If you work from home sometimes and curse yourself for not exporting your calls and sending them to yourself (not that I ever do that), you’ll love that feature.
If Postman isn’t your thing, there are plenty of other apps for REST testing. Insomnia, for example, was built by a local!