Learn how to test your React applications

Welcome to How To Test Frontend. On this site you can find the best resources teaching you in an interactive way how to write tests for your frontend applications.

Most popular lessons:

Start with testing (Jest/Vitest) fundamentals, or go straight into the React lessons

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New Course Coming Soon: Vitest Browser Mode
We're putting the finishing touches on our comprehensive Vitest Browser Mode course! Learn how to test your React components in a real browser environment with the latest testing techniques.

ETA: First week or so of December

📅 Pre-release: New content being added and polished through early December
Preview Vitest Browser Mode Course
Or view my React testing blog