Image Watermark

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Protect and brand your images by stamping them with a watermark right in your browser. Drop in any photo and add either a text watermark — with your own wording, color, and size — or an image watermark such as a logo. Place it precisely with a nine-point position picker and edge margin, or switch on tiling to repeat it across the whole image. Fine-tune the opacity and rotate it to any angle for a classic diagonal stamp. A live preview updates as you adjust each control, and one click exports a high-resolution PNG. Everything is composited locally with the HTML canvas — your images are never uploaded, so private photos stay private.

100% private: your images are processed directly in this browser tab and never uploaded.

Drag & drop an image here
or
Choose file

How to use

Drag and drop an image onto the upload area, or click to choose one. Pick a watermark type: Text lets you type your wording and choose a color and font size; Image lets you drop in a logo or stamp and set its size. Adjust the opacity and rotation to taste. Leave tiling off to place a single watermark — use the position grid and edge margin to position it — or turn tiling on to repeat the watermark across the whole image with adjustable spacing. The preview updates instantly. When it looks right, click Download PNG to save the result. Use Start over to load a different image.

Frequently asked questions

Are my images uploaded anywhere?
No. Decoding the image, compositing the watermark, and encoding the output all happen locally in your browser on an HTML canvas. Your images are never sent to a server, which makes this safe for private or confidential photos.
Can I use my own logo as a watermark?
Yes. Switch the watermark type to Image and drop in any image file — a transparent PNG logo works best because its transparency is preserved. You can then scale it, set its opacity, rotate it, and either place it at one position or tile it across the whole image.
Why is the output a PNG?
PNG is lossless and preserves transparency, so semi-transparent text and logo watermarks composite cleanly without the compression artifacts a JPEG would introduce. The exported image keeps the original photo's pixel dimensions.