Under the hood
Built on tools you already trust.
No bespoke runner, no proprietary format. Each project runs on one of two open-source frameworks, chosen when you create it, and Plum stays out of the way.
Playwright
A Playwright project uses its test runner and API directly, driving Chrome and Firefox for real with auto-waiting and reliable selectors.
Cucumber
A Cucumber project turns Given / When / Then into executable specs. The feature file is the test and the documentation at once.