pixelmatch

A fast pixel-level image comparison library, originally created to compare screenshots in tests.

Compare images using PHP

Codeless automate testing tool for software and game devs. Simple bot based on pixel match.

A place for free to play PC users that want to save keyboard and mouse from breaking!

Extension that improves the image diff view on GitHub.

Before/after screenshot diffing — pixel-diff two states of a page into one self-contained HTML review report.

HTML5 canvas visual regression tests for Jasmine using pixelmatch

Rebuild a frontend pixel-identical to a reference image. Coding-agent skill (Claude Code, Codex, Cursor) that measures the gap and returns an actionable per-region fix list — category, perceptual colour delta, the DOM element + CSS, and a fix hypothesis — with image strips, SSIM, and a convergence verdict.

A Ruby gem to create, compress, compare PNGs or JPEGs using Google Puppeteer/Chromium

Created screenshot of the page and compare with some model picture.

⚠️for personal use. PDFファイルの視覚的差分検知ツール

Self-hosted Chromatic-like VRT for Storybook — storycap capture + pixelmatch green/red diff + PR inline comment

🔍 parity-kit — AI-native visual, layout, animation & SEO parity scanner for web migrations. Pixel-perfect regression testing with Playwright. Zero flakes. One command.

Visual regression CLI with smart selector healing and diffing

🎭 Webサイトのスクリーンショットの差分を確認するデモアプリ

Playwright + TypeScript suite: visual regression (pixelmatch/sharp), computed-style checks, SEO/sitemap validation & broken-link detection, with GitHub Actions CI