FilePDQBefore and afterFREE
Compare two images with a slider, side by side, or as a map of what changed.
Stays on your device
Questions about Before and after
Is Before and after free?
Yes. It is free to use, with no sign-up, no watermark and no limit on how often.
Are my files uploaded?
No. It runs in your browser, so your files stay on your device and are never sent to us or anyone else. Privacy notice
Which files can I use?
JPG, PNG, WEBP, GIF, BMP, AVIF, HEIC. Up to 60 MB per file, 50 files at a time, 50 megapixels. Formats marked with a star depend on your browser.
Step by step, and if something goes wrong
Steps
- Choose the Before image and the After image.
- Drag the divider, or switch to Side by side or Differences.
If something goes wrong
- Differences shows changed areas as bright and unchanged areas as black, with an estimate of how much changed.
- If the two images are different sizes, After is stretched to match Before so the same spots line up.
- HEIC photos (from iPhones) are supported. Outside Safari, a HEIC decoder loads the first time you add one.
- Very large images (over 50 megapixels) are rejected to keep your browser responsive.
- Output never contains the original’s hidden metadata (such as GPS location), because the image is redrawn from its pixels.