Jest vs. Karma

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What is Jest?

Jest provides you with multiple layers on top of Jasmine.

What is Karma?

Karma is not a testing framework, nor an assertion library. Karma just launches a HTTP server, and generates the test runner HTML file you probably already know from your favourite testing framework. So for testing purposes you can use pretty much anything you like.

Want advice about which of these to choose?Ask the StackShare community!

Why do developers choose Jest?
Why do you like Jest?

Why do developers choose Karma?
Why do you like Karma?

What are the cons of using Jest?
No Cons submitted yet for Jest
Downsides of Jest?

What are the cons of using Karma?
No Cons submitted yet for Karma
Downsides of Karma?

What companies use Jest?
307 companies on StackShare use Jest
What companies use Karma?
163 companies on StackShare use Karma
What tools integrate with Jest?
1 tools on StackShare integrate with Jest
What tools integrate with Karma?
2 tools on StackShare integrate with Karma

What are some alternatives to Jest and Karma?

  • Mocha - Simple, flexible, fun javascript test framework for node.js & the browser
  • Jasmine - DOM-less simple JavaScript testing framework
  • Enzyme - JavaScript Testing utilities for React, by Airbnb
  • Protractor - End-to-end test framework for Angular and AngularJS applications

See all alternatives to Jest

Get Started with vue-test-utils and Jest


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