Free QA calculators

Practical calculators to help you estimate, plan, and improve your testing. Looking for our open-source projects? See projects →

• Defect Density Calculator

  Calculate defect density (defects per KLOC or per story point) and compare against industry benchmarks. Free, no signup.

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• Test Coverage Calculator

  Calculate line, branch, or function coverage and see where it falls against a common industry heuristic. Free, no signup.

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• Relational Test Data Generator

  Generate referentially-consistent test data across related tables: users, orders, and line items with valid foreign keys, a fixed seed, and JSON or SQL export. Free, runs in your browser.

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