About Wotermark
Wotermark is a free tool for adding a watermark to many images at once. Upload a single watermark, drop in a batch of photos, and download every one of them watermarked — no accounts, no installs, no fuss.
How it works
- Add your watermark. Upload a PNG (transparency recommended), then set the output size, how large the watermark should be, and its opacity.
- Drop in your images. Add as many as you like — JPG, PNG or WebP.
- Process & download. Each image is scaled and watermarked, then you can download them individually or grab everything as a single ZIP.
Privacy by design
Your images are processed on the fly and are never stored on the server. Your watermark and settings are kept locally in your browser so they’re ready next time — they never leave your device except when you process a batch. There are no analytics, tracking cookies or ads. Read the full privacy policy.
Free to use
Wotermark is free. If you hit a snag or have an idea, please get in touch.