How do I compare two images side by side?

Upload a "Before" image and an "After" image. A slider appears between them so you can drag to reveal more of either image.

What is the image comparison slider used for?

It works well for before/after edits, design revisions, AI enhancement demos, or any two versions of the same image.

Is the image comparison tool free?

Yes, completely free. No account required.

Are my images private?

Yes. Images are loaded directly in your browser and never uploaded to any server.

Image Comparison Slider

Compare two images side by side with an interactive slider. Perfect for before/after edits. Free and private — images are processed in your browser, no upload needed.

Read our full guide

Upload Before Image

Upload After Image

Features

Interactive drag slider for before/after comparison

Horizontal and vertical comparison modes

Keyboard arrow keys support for precise control

Before/After labels with blur backdrop

Export comparison as single PNG image

Touch-friendly for mobile devices

Smooth drag interaction

Works with any image format

How to Use

Upload a Before image and an After image

Drag the slider to compare both images

Toggle between horizontal and vertical mode

Export the comparison view as PNG

image comparebefore aftercomparison sliderphoto compareside by sideimage diffbefore after slidervisual comparisonfree onlineno upload

100% private — your images are processed in the browser and never uploaded to any server.

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