Compare Two Images Online
Upload exactly two images, compare them with slider, side-by-side, difference, or overlay mode, switch between horizontal and vertical layouts, swap image order, and download the current comparison view.
Select exactly 2 images to compare
Images never leave your device. All edits happen in your browser.
Controls
Upload a file to unlock these editing controls.
How to Compare Two Images
- Click "Select 2 Images" and choose exactly two photos
- Use the slider to reveal each image
- Switch between Slider, Side by Side, Difference, or Overlay modes
- Toggle between horizontal and vertical orientation
- Use "Swap" to switch image order
- Download the current comparison as PNG
Key Features
Slider Mode
Drag a divider across the images to reveal one or the other.
Side by Side Mode
View both images next to each other at full size.
Difference Mode
Highlight pixel-level differences to spot changes between images.
Overlay Mode
Blend both images to check alignment and transparency differences.
Flexible Layout
Swap image order and change orientation to review the comparison the way you want.
Save the Active View
Export the current comparison view as an image.
Frequently Asked Questions
In Slider, Difference, and Overlay modes both images are scaled to match the larger dimension. In Side by Side mode each image keeps its original size.
Difference mode compares pixels between the two images and highlights changed areas.
No. Everything runs locally in your browser and your images never leave your device.
No. This tool compares exactly two images at a time.