garris / BackstopJS

Catch CSS curve balls.

GoogleChrome / lighthouse-ci

Automate running Lighthouse for every commit, viewing the changes, and preventing regressions

americanexpress / jest-image-snapshot

✨ Jest matcher for image comparisons. Most commonly used for visual regression testing.

simple-statistics / simple-statistics

simple statistics for node & browser javascript

AndyShiu / claude-skill-playwright-browser

Claude Code skill: a background Playwright browser for screenshots (desktop/tablet/mobile), frontend health checks, visual diffs, scripted UI flows and logged-in pages — in any project. ｜ 讓 Claude Code 擁有背景瀏覽器：多尺寸截圖、前端健檢、視覺比對、操作流程與登入頁面，適用任何專案。

sunxin-ai / dsh-design-qa

Design-fidelity QA for DeepSeek Harness: lend any text-only model an eye, then judge whether the implementation matches the mock. Ships the benchmark behind that judgement — four fixtures, 23 injected defects, and every raw model transcript. Retires itself when DeepSeek ships vision.

jameskomo / config-drift-checker

CI for your coding-agent setup (CLAUDE.md, skills, hooks): pinned baselines, a canary on every Claude Code release, model and version matrix, context-cost drift, self-diagnosing reports, repair. Claude Code, Codex, Gemini.