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Before / After Compare Slider

Compare two images with a drag slider online: compressions, edits, redesigns. Same-size pairs align best.

Before / after compare

How to use

  1. Upload before and after images (same size aligns best).
  2. Drag the slider to reveal the diff.
  3. No export; re-upload for the next pair.

FAQ

Different sizes?

Cover-cropped to match — same dimensions give pixel-exact reveals.

Uploaded?

Object URLs only — pixels never leave the tab.

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