Batch Visual Diff Analyzer
Compare multiple images against a reference image. Use interactive sliders, blink tests, and pixel-level difference highlighting to spot even the smallest changes.
Drop images to compare
Upload a reference image and comparison files. Supports PNG, JPG, WebP, AVIF.
Try with Examples
Loaded Gallery
Visual Comparison Studio
Comparison Batch
| Preview | File Name | Diff % | Status | Action |
|---|
Click the pin icon in the list below to set a reference image
Diff Settings
Ignore minor pixel variations
Baseline (Reference)
No reference set
0 x 0
Tip: Use the pin icon in the list below to pick any image as baseline.
Professional Visual Difference Analysis
Spot pixel-level regressions, UI changes, and image variations instantly. The most powerful browser-based visual diff tool for developers and designers.
4 Comparison Modes
Choose between side-by-side, interactive overlay sliders, pixel-difference heatmaps, and blink tests to analyze changes from every angle.
Pixel-Level Accuracy
Our engine detects even the smallest 1-pixel variations. Adjust tolerance to ignore minor color shifts while catching critical regressions.
Batch Comparison
Compare dozens of screenshots or assets against a single reference image in one go. Perfect for regression testing and quality control.
How to Visual Diff in 3 Steps
Upload All Images
Drag and drop your reference image and the files you want to compare. We support batch uploads.
Set Reference Image
Select one image as your "Golden" reference. All other images will be compared against it automatically.
Analyze & Export
Switch between modes to see differences. Export the difference maps individually or as a ZIP.
Frequently Asked Questions
What is a Blink Test?
A blink test rapidly toggles between the reference and the current image. This leverages human persistence of vision to make even the smallest movements or color shifts "jump" out at the eye.
Can I compare images of different sizes?
Yes. The tool will align the images from the top-left corner. Any area outside the overlapping dimensions will be treated as a difference.
Are my images uploaded to a server?
No. Like all our tools, Visual Diff runs entirely in your local browser. Your images never leave your computer, ensuring 100% privacy.