Test Kitchen vs Testling: What are the differences?

Developers describe Test Kitchen as "Integration tool for developing and testing infrastructure code and software on isolated target platforms". Test Kitchen has a static, declarative configuration in a .kitchen.yml file at the root of your project. It is designed to execute isolated code run in pristine environments ensuring that no prior state exists. A plugin architecture gives you the freedom to run your code on any cloud, virtualization, or bare metal resources and allows you to write acceptance criteria in whatever framework you desire. On the other hand, Testling is detailed as "Automatic browser tests on every push". Sign in with your browserling account. free for open source. No sign-up required. Just configure a github webhook.

Test Kitchen and Testling can be primarily classified as "Continuous Integration" tools.

Test Kitchen and Testling are both open source tools. It seems that Test Kitchen with 1.62K GitHub stars and 543 forks on GitHub has more adoption than Testling with 337 GitHub stars and 47 GitHub forks.