Chapter 6 – Test Tools
Headless Browser – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A web browser without a graphical user interface, used to run UI tests faster and in CI environments.
In simple words
A browser with no visible window — perfect for running tests in CI.
Exam tip
Headless Chrome and Firefox are standard for CI; Playwright and Puppeteer default to headless.
Related terms
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