Visual testing powered by computer vision

A generational leap in image comparisons—reducing noise and highlighting the most important changes.

Introducing Percy Visual Engine

Percy Visual Engine is the core algorithm that runs all the image comparisons. It is an upgrade of the existing diffing algorithm on Percy platform to bring significant improvement in noise reduction and highlight changes that matter to help you ship with confidence.

The most advanced visual testing algorithm

All new visual testing experience that focuses on changes your users care about

Assert visual correctness with Percy

Noise reduction

Significant reduction of layout shifts and non-deterministic rendering noises.

Scalable visual tests and reviews with Percy

Highlight relevant changes

Highlight only the most important changes on a page using a proprietary method.

Test responsive breakpoint widths with Percy

Increase in productivity

The time required to review changes drastically reduced for a faster visual testing experience

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Reduced noise and flakiness

App Percy helps you focus on changes that matter by highlighting only the changes that are most critical to your users.

Page shift detection

App Percy highlights the exact pixels that cause the page shift instead of marking the entire page contents as diff.

Handling anti aliasing noise

Percy Visual Engine uses computer vision to deterministically render each pixel, thereby eliminating the false positives due to anti-aliasing.

Intelligent text stabilization

Minor character shifts during rendering leading to false positives are a thing of the past. Percy Visual Engine stabilizes text shifts using an OCR (Optical Character Recognition) library.

Ignore regions

You can now ignore specific regions on a page, so you no longer have to worry about dynamic data causing flakiness.