Image Watermark Tool — Add Text Watermarks Online
Batch-add text watermarks locally: size, color, opacity, rotation, tiling — all in browser
Click to upload or drag image here
Supports JPG / PNG / WebP formats
Upload an image to preview watermark effect
Free online image watermarking for JPG, PNG, WebP and more. Customize watermark text, font size, color, opacity, rotation angle, and tile spacing with live preview. All processing runs in your browser — images never leave your device, making it safe for IDs, contracts, and other sensitive assets.
How to add a watermark to an image
- 1
Upload your image
Click the upload area or drag an image in. JPG, PNG, and WebP are supported.
- 2
Configure watermark
Set the watermark text and adjust size, color, opacity, rotation, and spacing. The preview updates in real time.
- 3
Download the result
Click download to save the watermarked image locally. The original file is not modified.
Frequently asked questions
Are my images uploaded to a server?
No. All watermark compositing happens locally in your browser — image data never leaves your device.
Which image formats are supported?
Any format your browser can decode, including JPG/JPEG, PNG, and WebP.
Can I create a tiled watermark?
Yes. Adjust the horizontal and vertical spacing to tile the watermark across the whole image.
Will the output image be compressed?
Output is rendered at the original resolution via the browser's canvas, so quality loss is typically minimal.