Playwright Visual Regression Tester

Automates visual regression testing using the Playwright screenshot comparison API and pixelmatch diffing library. Captures baseline snapshots, detects pixel-level UI changes across viewport sizes, and generates HTML diff reports with threshold-based pass/fail results.

Installation

Use the upstream install or setup path that matches your environment:

• npm install -g @playwright/cli@latest
• npm i playwright

Requirements and caveats from upstream:

• Playwright is also available for Python, .NET, and Java.

Basic usage or getting-started notes:

• bash

• Optionally install skills for richer agent integration:

• playwright-cli install --skills

• Source: https://github.com/microsoft/playwright

• Extracted from upstream docs: https://raw.githubusercontent.com/microsoft/playwright/HEAD/README.md

Source

• Agent Skill Exchange