Automation Code Decoder
Master unfamiliar frameworks, faster.
Paste test scripts in Java, TypeScript, or Python and get a plain-English breakdown of the logic, locator strategy, assertions, and design patterns.
What it does
Paste test scripts in Java, TypeScript, or Python and get a plain-English breakdown of the logic, locator strategy, assertions, and design patterns.
Who this is for
Junior QA engineers, career changers, and manual testers learning test automation who encounter unfamiliar code written in Playwright, Selenium, Cypress, or similar frameworks.
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How to use Automation Code Decoder
- 1Paste your test script (TypeScript, Java, Python, or JavaScript) into the input area.
- 2Click Decode — the tool analyses the code structure, locators, and patterns used.
- 3Read the plain-English breakdown section by section.
- 4Use the 'What to learn next' suggestions to deepen your understanding.
- 5Try modifying the original code based on what you learned and decode again.
Example output
For a Playwright TypeScript test using fixtures and Page Objects, the tool explains: what the fixture does, why `page.getByRole` is preferred over `page.locator`, what the `expect(locator).toBeVisible()` assertion checks, and which design pattern (POM) is in use.
Limitations
- Works best with test files under 200 lines — very large files may produce incomplete analysis.
- Framework detection is heuristic — unusual project structures may be misidentified.
- Does not execute the code; analysis is static and cannot detect runtime behaviour.
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Frequently asked questions
Which frameworks does it support?v
Playwright (TypeScript/JavaScript), Cypress, Selenium WebDriver (Java, Python, C#), Jest, and Vitest. Generic patterns like Page Object Model and fixture injection are detected across all.
Can I use it to understand code written by a colleague?v
Yes — this is one of the most common uses. Paste the code and get an explanation without having to ask the original author to walk you through it.
Is the code I paste stored anywhere?v
No. The tool runs in your browser and sends the code to the AI model only to generate the explanation. It is not stored on QATraining.uk servers.