Three ways to do the same job. The differences that matter: where your image goes, what it costs, and whether you can do a batch.
| Criterion | This tool | Typical online watermark removers | Desktop photo editors |
|---|---|---|---|
| Images leave your device | Never — processed in-browser | Uploaded to a server | Never — processed locally |
| Price | Free | Free tier, paid to remove limits | Paid licence or subscription |
| Watermark on the output | None | Common on free tiers | None |
| Account required | No | Usually | Usually |
| Batch editing | All images tiled at once, strokes can sync across them | Usually one image at a time | Possible via actions or scripting |
| Works offline | Yes, after the model is cached | No | Yes |
| Install required | No | No | Yes |
| Main cost to you | A one-time 28 MB model download | Your images sit on someone else's server | Money, and a learning curve |
If the image is not sensitive and you only do this occasionally, an online service is the least effort — at the cost of uploading, and usually of a watermark or a quota on the free tier.
If the images involve clients, identity documents or unreleased work, or you need to process dozens at a time, in-browser processing is the better fit: there is no upload step, so there is nothing to retain or leak. The cost is a one-time 28 MB model download.
If what you actually need is pixel-level retouching with layers and colour management, that is not a watermark tool at all — a desktop editor is the right instrument.