Karma vs Sauce Labs: What are the differences?
Karma: Spectacular Test Runner for JavaScript. 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; Sauce Labs: Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup. Cloud-based automated testing platform enables developers and QEs to perform functional, JavaScript unit, and manual tests with Selenium or Appium on web and mobile apps. Videos and screenshots for easy debugging. Secure and CI-ready.
Karma and Sauce Labs can be categorized as "Browser Testing" tools.
Some of the features offered by Karma are:
- Test on Real Devices
- Remote Control
- Testing Framework Agnostic
On the other hand, Sauce Labs provides the following key features:
- 700+ browser/OS/device combinations for cross-browser and platform testing to improve web and mobile app quality and eliminate the overhead of internal infrastructure
- Highly reliable, on-demand cloud for enterprise-grade scalability and industry standard security
- Optimized for popular testing frameworks, CI systems, and surrounding tools and services
"Test Runner" is the primary reason why developers consider Karma over the competitors, whereas "Selenium-compatible" was stated as the key factor in picking Sauce Labs.
Karma is an open source tool with 10.7K GitHub stars and 1.61K GitHub forks. Here's a link to Karma's open source repository on GitHub.
According to the StackShare community, Karma has a broader approval, being mentioned in 119 company stacks & 57 developers stacks; compared to Sauce Labs, which is listed in 66 company stacks and 11 developer stacks.
