Guides, tutorials, and insights on visual regression testing.

PixelEagle vs Percy, Chromatic, and Lost Pixel: Choosing a Visual Testing Tool

Four tools, four different models of what a visual test is. An honest comparison to help you pick the right one for your stack.

Visual Testing for Graphically Rich Apps: When DOM Snapshots Are Not Enough

Canvas, WebGL, maps, charts, and games render pixels, not DOM nodes. Testing them means comparing what the user actually sees.

How Game Engines Can Use NVIDIA ꟻLIP for Rendering QA

Game development has a visual regression problem at a scale and complexity that makes it significantly harder to solve. NVIDIA built ꟻLIP for this.

Give Your AI Coding Assistant Eyes: Visual Testing with the PixelEagle CLI and Skill

LLM coding agents write plausible UI code they cannot see. The PixelEagle CLI and skill close the loop: screenshot, compare, inspect the diff, iterate.

Golden Records: One Approved Baseline, Three Ways to Keep It Fresh

Stop wondering which run to compare against. A golden record is a mutable, approved baseline that every new run is checked against, and it can update itself.

Visual Regression Testing with GitHub Actions and PixelEagle

Add PixelEagle visual testing to a GitHub Actions workflow, from zero to visual diffs on every pull request.

Pixel Diff vs Perceptual Diff: Why NVIDIA ꟻLIP Catches What Others Miss

Most tools default to pixel diff. It is simple, fast, and noisy at scale. Perceptual comparison asks a better question: would a human notice?

What Is Visual Regression Testing? A Practical Guide

Your test suite checks logic, data flow, and user journeys, but not whether the UI actually looks right. Visual regression testing catches what other tests miss.