Visual Regression Testing

Catch visual regressions before your users do.

UIProof screenshots your site after every deploy, diffs every page across all viewports, and uses AI to tell you what changed — and whether it matters.

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Why it matters

Visual bugs are invisible until they're embarrassing.

“A layout shift breaks mobile checkout but nobody notices for 3 days.”

UIProof flags the diff immediately after deploy. Your team sees it before customers do.

“Your AI coding agent updated a component and silently changed button sizes site-wide.”

Pixel-level diff catches the change. AI review tells you if it's cosmetic or a conversion risk.

“You're managing 10 client sites. Manual visual QA is killing your margins.”

Automated checks after every deploy. One dashboard, all clients, zero babysitting.

How UIProof works

Automated visual QA in four steps.

Step 1

Baseline snapshot

UIProof takes screenshots of every route you specify — desktop, tablet, and mobile — and stores them as your baseline.

Step 2

Deploy and diff

After each deploy, UIProof re-captures every route and runs a pixel-level diff. Regressions surface instantly.

Step 3

AI review

Gemini AI reads the diff and tells you: is this intentional, cosmetic, or a regression that needs attention? No false-alarm fatigue.

Step 4

Alert and archive

Get email or webhook alerts for regressions. Every capture is stored so you can audit the visual history of your site.

Common questions

Visual regression testing, explained.

What is visual regression testing?

Visual regression testing compares screenshots of your website before and after a code change to detect unintended visual differences. Instead of manually clicking through every page after a deploy, an automated tool captures, compares, and flags what changed — so your team can focus on shipping.

How is UIProof different from Percy or Chromatic?

Percy and Chromatic are built for component-level Storybook testing in CI pipelines. UIProof tests your live deployed site — the actual URLs your users visit — across real viewport sizes. No test suite setup, no CI config. Point it at your site and it works.

Do I need to set up tests or write code?

No. UIProof works against your live URLs. You add your routes in the dashboard, configure your viewports, and UIProof handles the rest. No Playwright scripts, no Jest config, no YAML pipelines.

What kinds of visual regressions does UIProof catch?

Layout shifts, font rendering differences, color changes, missing images, broken component states, spacing changes from CSS updates, and anything that causes a visible pixel difference between two captures.

Does UIProof work with AI coding agents?

Yes — it's designed for this. AI agents like Codex and Claude Code move fast and don't run visual QA. UIProof is the automated visual gate that catches what AI agents miss.

Ship with confidence.

Add visual regression testing to your deploy workflow in minutes. Free plan includes 3 sites and 100 captures/month.

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