How to remove a watermark from a photo

You can remove a watermark for free, right in your browser — no upload, no account, and no watermark added to the result. Unmark lets you paint over the mark and fills it back in with on-device AI at full resolution. Here's the whole process in about a minute.

Step by step

1. 1

   Open your image

   Open the editor and drag in a JPG, PNG, or WebP — or tap Choose image. Your file stays on your device; nothing is uploaded.

2. 2

   Mask the watermark

   Brush over the watermark, or use the rectangle or lasso for solid blocks. For text watermarks, tap Auto-suggest to detect and pre-fill the mask, then tidy it up.

3. 3

   Pick an engine

   AI eraser (default) reconstructs texture and is best for photos and edges. Fast is classical fill — instant, good for thin marks on flat areas.

4. 4

   Run

   Hit Run. Unmark fills the masked area at full resolution. Re-mask any leftovers and run again for stubborn marks.

5. 5

   Compare and download

   Hold Before/After to check the result, then Download (same format, full resolution) or Copy to the clipboard.

Tips for a clean result

• Mask a little beyond the watermark's edges — a snug mask leaves faint traces.
• Keep the mask off high-contrast edges when using Fast; the AI eraser handles edges far better.
• Work in passes: remove the bulk, then re-mask and run again on what's left.
• Everything runs on your device — your image is never uploaded.

Formats & quality

Unmark works with JPG, PNG, and WebP. Your download keeps the original format at full resolution, and every pixel outside the mask is left byte-for-byte identical — only the area you painted changes. Metadata (EXIF) is stripped on export.

Is it legal?

Only remove watermarks from images you own or are licensed to edit — for example, your own photos, stock you've purchased, or previews you have rights to. Don't strip other people's copyright or attribution marks.