Online Image Watermark Tool
Add text watermarks to images with 9-grid positions, tile mode, and full style control. 100% private, all processing in your browser
Click or drag files here
Batch upload supported
JPG, PNG, WebP, GIF, SVG
Start adding watermarks
Click or drag an image to the area above to start adding a watermark
Frequently Asked Questions
Drawing a watermark on the canvas may involve minor recompression. PNG output preserves quality with transparency support; JPEG output uses 92% quality for a smaller file size.
No. All watermark drawing is done locally in your browser via Canvas. Your image data never leaves your device, ensuring complete privacy protection.
Supports common formats like JPG/JPEG and PNG for upload. Output can be PNG (supports transparency) or JPEG (smaller size with white background).
Tile mode repeats the watermark across the entire image in a grid, commonly used for copyright protection to prevent cropping out a single watermark.
Yes. The rotation slider ranges from -90 to 90 degrees. A diagonal angle combined with tile mode is a popular anti-theft choice.
Completely free. This is a pure frontend online tool - no registration required, no payment needed, just open and use.
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