Watermark Stamper

Add a text or logo watermark to many images at once, then download them as a zip. 100% on your device — nothing is uploaded.

Watermark a whole batch of images in seconds — without uploading a single one. Drop your photos in, set a text or logo watermark, and download them all as a zip. Everything runs on your own device using your browser, so your images stay private and the whole batch is fast. HOW IT WORKS 1. Drop in your images (or click to choose several at once). 2. Set your watermark — combine text, your own logo, diagonal lines, and diagonal text such as "NOT COPY". Adjust size, opacity, position or diagonal tiling. 3. See the live preview, then download the whole batch as a zip. WHY THIS ONE - Private by design: your images never leave your computer. No account, no server, no uploads. - Fast batch: stamp many images at once and get a single zip. - Flexible: four watermark layers you can freely combine, 9 positions, drag to place anywhere, adjustable size and opacity, or repeat the mark diagonally to protect photos. WHAT YOU GET (FREE) - Stamp up to 3 images per batch - Text watermark with size, color, opacity and position - Live preview and zip download PRO (ONE-TIME PURCHASE, NO SUBSCRIPTION) - Unlimited images per batch - Logo-image watermark (use your own logo) - Diagonal lines, and diagonal text such as "NOT COPY", across the whole image - Diagonal tiling with adjustable position - Saved presets for your watermark settings Great for: online sellers protecting product photos, photographers and illustrators, bloggers, and anyone who posts a lot of images. Not affiliated with any marketplace. Your images stay yours, on your device.