When batch removal works, and when it doesn’t
Boxes are stored as fractions of the image width and height, so they land in the same spot on images of different sizes, as long as the watermark scales with the image (most export stamps do). If the mark moves from image to image, or the photos have different aspect ratios with a fixed-size logo, clean those in the single-image remover instead.
Speed
Each mark is filled with the same multi-scale PatchMatch eraser as the single-image tool, at full resolution up to 4096 px. Expect roughly one to three seconds per image on a modern laptop, longer on phones.
Your own content
Use these tools on files you made or have the right to edit. A watermark often identifies the creator or tells viewers that something was made with AI. Removing it from someone else’s work, or to pass AI content off as real, can break copyright law and platform rules.
Questions
Can I remove watermarks from multiple images at once for free?
Yes. Add the images, mark the watermark once and download a ZIP. It runs on your device with no limit.
Are my images uploaded?
No, batch erasing is local. Only “Find watermark (AI)” sends one downscaled preview image to locate the mark.
What if the watermark is in a different place on some images?
Remove those images from the batch and clean them one by one, or run two batches with different box positions.