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DataToolings

Image Before/After Comparison Slider

Compare two images with an interactive drag slider. Upload before and after images to see the difference.

Drop or click to upload

Drop or click to upload

Upload both images to see the comparison slider

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What Is the Image Comparison Slider?

The image comparison slider lets you drag a divider between two images to see them side by side in a single frame. It's perfect for comparing before/after edits, design revisions, photo retouching results, or any two versions of the same scene. Both images are displayed at the same size, and the slider reveals each one proportionally.

How to Use

  • Upload a "Before" image using the left drop zone
  • Upload an "After" image using the right drop zone
  • Drag the slider left and right to reveal each image
  • Works on desktop (mouse) and mobile (touch)

Features

  • Interactive drag-to-compare slider
  • Supports JPEG, PNG, and WebP images
  • Mouse and touch support for all devices
  • Images scaled to the same display size automatically
  • 100% browser-based — your images never leave your device

FAQ

Do the images need to be the same size?

No. Both images are scaled to fill the same display frame, so they will appear the same size regardless of their original dimensions.

Can I use this on mobile?

Yes. The slider supports touch events, so you can drag it with your finger on any touchscreen device.

Can I save or share the comparison?

This tool is for live interactive comparison only. To save a static side-by-side, use a screenshot tool or the browser's built-in screenshot function.