Add a watermark to images
Your images never leave your device — the watermark is added right here in your browser. Free, no account.
Style
Stays on your device The watermark is drawn in your browser — it keeps working even with your internet turned off.
Batch + ZIP Watermark many images at once with the same settings and download them together.
No logo, no limits Free, no account, no cookies — and we never stamp our own mark on your image.
More private image tools
- Black out & redactPermanently black out faces, text or info in a screenshot or photo — flattened in, so it cannot be recovered.
- Blur & pixelate facesPixelate or blur faces, plates and screens in a photo before you post it.
- Remove EXIF & metadataStrip GPS location, camera info and timestamps from a photo before you post or send it.
Frequently asked questions
Are my images uploaded anywhere?
No. The tool runs entirely in your browser with the File and Canvas APIs. Open your DevTools Network tab while you use it — you will see no request carrying your image.
Does MarkImg add its own watermark or a daily limit?
Never. There is no MarkImg logo added to your image, no sign-up, and no daily limit — watermark as many images as you like.
Can I watermark several images at once?
Yes. Add multiple images, set the watermark once, and download them all together as a ZIP. The same text and style apply to every image.
JPG or PNG — which should I pick?
JPG is best for photos and scanned documents (much smaller files). PNG is lossless, best for screenshots or graphics with sharp edges.