💧 Image Watermark
Add a text watermark to images. Customize font, size, color, opacity, and 9 positions (top-left, center, bottom-right, etc). Processed in-browser via Canvas API.
✅ 100% free · no signup · images are never uploaded or stored on our server
🔒 About Privacy
- ・All processing happens entirely in your browser
- ・Image data is never sent to any server
- ・No storage logs, no upload history, no database
- ・No signup, no login, no payment ever
📂
Drag & drop, click to select, or paste an image
Pick from 9 positions. For repeating watermark across the entire image, choose Tile.
📖 How to Use
-
1
Load an imageDrag and drop, click to select, or paste from clipboard with Ctrl+V.
-
2
Set text and styleEnter text, choose font, size, color, opacity, stroke. Preview updates in real time.
-
3
Pick a positionPick one of 9 positions (top-left, center, bottom-right, etc) or enable Tile to repeat across the image.
-
4
DownloadDownload as PNG or JPEG. Filename gets _watermarked suffix.
❓ FAQ
Is my image uploaded to your server?
No. All processing happens in your browser via Canvas API. Image data never leaves your device.
Can I use a logo image as the watermark?
Currently only text is supported. For image logo watermarks, please use a dedicated compositing tool.
Are CJK fonts (Japanese / Chinese / Korean) supported?
Yes. Any character your browser can render works. Choose sans-serif or serif to use your OS system font.