Watermark image

Protect your images with a custom watermark — text or logo, adjustable opacity and position, all done locally.

Drop an image here

JPEG, PNG, or WebP — up to 50 MB

Browse files

Your image is processed locally — nothing is ever uploaded.

how to use

How to watermark an image

Upload your image

Drop your photo into the tool. It's opened locally — your image stays on your device.

Design your watermark

Enter watermark text or upload a logo. Adjust the opacity, size, rotation, and position on the image.

Apply

The watermark is baked into your image in your browser. Preview and fine-tune before finalizing.

Download

Save the watermarked image. Use it to protect your photography, brand your content, or mark drafts.

about this tool

Watermark Image without giving up your privacy

Online tools often ask you to upload your files before processing them. For anything sensitive — contracts, statements, personal documents — that's a real privacy concern. This tool takes a different route: everything runs entirely in your browser. Your files are opened locally, processed in your device's memory, and handed back to you. No copy is ever transmitted to a server, which means it works offline too.

Privacy by design. This tool loads once and runs entirely in your browser tab. Close the tab and nothing remains. No cookies, no tracking, no server — just the utility you need, instantly.

faq

Watermark image — frequently asked questions

No. All processing happens entirely inside your browser. Your files are read locally, processed in your device's memory, and handed back as a download — nothing is transmitted anywhere.

No. There's no sign-up, no email, and no paywall. Open the tool, process your files, and download — that's the entire flow.

No fixed cap. Because everything runs locally, the practical limit is your device's available memory. Most people process files up to hundreds of megabytes without any issue.

Yes. Once the page loads, the entire tool runs in your browser and works without an internet connection — perfect for planes, secure environments, or anywhere with limited connectivity.

No. The tool preserves your files exactly as they are. No quality loss, no compression artifacts, no modification unless you explicitly choose to apply changes.

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