Free Learning
Free software testing guides
Learn the testing concepts, examples, and workflows that support real QA work. Start with foundations, then move into automation, API testing, and AI quality topics.
ISTQB Foundation Essentials
Certified Tester Foundation Level (CTFL) preparation guide
A practical preparation guide for ISTQB Certified Tester Foundation Level concepts, with real-world scenarios, visual diagrams, quizzes, and review questions.
Playwright Professional
End-to-end testing with TypeScript and Java
Build practical Playwright automation skills for modern E2E checks: locators, fixtures, API mocking, parallelisation, CI integration, and debugging.
AI Testing
AI, ML and LLM testing for working QA professionals
Hands-on guide material for QA professionals testing AI systems: lifecycle strategy, data quality, model validation, risk, fairness, robustness, monitoring, and LLM application evaluation.