pixel-diff

Visual QA, browser automation, accessibility auditing, screenshot diffing, and MCP tooling for coding agents.

Published: 2026-10-18

Deterministic design-fidelity evals for AI-generated screens, decks and brand collateral. Lock the design system, generate designs, refuse anything off-system. Achieve fidelity.

Catch UI regressions before they merge.

Codex skill for pixel-perfect website cloning with OpenCLI, Browser Harness, screenshots, pixel diff, and reviewer-agent QA.

PicassoWeb MCP Server: An AI-agent tool for automated UI replication, CSS token extraction, and design system scraping via headless Chromium. Features pixel-differential testing, asset downloading, layout mapping, and component cloning.

Lossless desktop replication: sends only the pixels that changed. Native and browser viewers over QUIC, with a relay for NAT.

Visual QA, browser automation, accessibility auditing, screenshot diffing, and MCP tooling for coding agents.

A local-first visual diff tool for comparing UI screenshots and exporting PR-ready reports.

Rust CLI screenshot regression tool that compares images pixel-by-pixel and emits pass/fail visual diff reports.

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.

Clone any website into a Next.js project with Claude Code or Codex, then prove it: ports the real compiled CSS, markup and scripts, and gates every route on a desktop and mobile pixel-diff.

Prove a local image edit left every pixel outside the mask untouched: per-pixel comparison, difference heatmap and a SHA-256 proof report. DeepSeek Harness (DSH) plugin + zero-dependency CLI.

Visual-parity check for website migrations, built for coding agents: screenshot-diff your branch against production and see which DOM element and CSS property changed.

Terminal UI for detecting visual regressions on websites. Captures full-page screenshots from a sitemap and compares them against stored references using pixel diff

Claude Code Visual Diff: browse two versions of a site side by side with a live, exact pixel diff between them