About Simple Watermark
Add watermarks to your photos in batch, 100% in your browser. No upload, no signup, no watermark of the tool itself. Your files stay in your device; advertising partners may process data as described in our Privacy Policy.
What it does
Simple Watermark lets you add text or logo watermarks to unlimited photos at once, right in your browser. Built for photographers, marketplace sellers, e-commerce stores, and agencies who need to protect hundreds of images without uploading them anywhere.
How it works
Everything runs locally using the HTML5 Canvas API. Your images never touch a server — there is no backend, no database, no upload step. Drop your photos, configure the watermark (text, position, opacity, rotation, color), and download the result.
Funding
The tool is funded by Google AdSense. Advertising partners may process data as described in our Privacy Policy. We do not run our own analytics, fingerprinting, or session-replay scripts. We do not sell user data.
Open source
Every tool is built with transparency in mind. If you have questions or want to suggest an improvement, reach out via the contact page.