Free A/B testing course
The free framework for tests that actually move revenue
Free A/B testing course launched on March 10, 2026 with 28 votes, #793 of 23,380 launches that month and more than 95% of that year's launches.
What it does
We've helped 3,000+ teams run experiments. The same mistakes show up everywhere: no hypothesis, tests killed too early, vanity metrics dressed up as wins. So we built the course we needed two years ago. 6 modules covering what to test, how to read statistical significance, and how to build a system your team repeats every month not just once. Tool-agnostic. Completely free. Based on real experiments, not textbook theory.
Free A/B testing course in 6 modules. Learn to plan tests, size samples, check significance, and read results. Built by CRO practitioners.
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