Add Watermark to Image Free – Text & Logo Online
Add text watermarks to images or paint over existing watermarks online. Adjust opacity, position, and color—100% browser-based, no uploads, instant PNG download.
Runs in your browser
WebAssembly, no server
No signup required
Open and use instantly
Files stay private
Nothing leaves your device
How It Works
Upload your image using the dropzone or file picker
Choose 'Text Watermark' or 'Logo Watermark'
For text: type your watermark text, choose font size, color, and opacity
Key Features
- Add custom text watermarks to any image
- Upload logo/PNG for image-based watermark
- Adjustable opacity (0–100%)
- Multiple position options (center, corners, tiled, diagonal)
- Font size and color customization
- Supports JPG, PNG, WebP images
- Live preview of watermark placement
- Download watermarked image instantly
- No sign-up required
- 100% browser-based — no server upload
- Free with no watermark on the watermarker itself
- Mobile-friendly interface
About This Tool
Our Watermark Tool lets you protect images by adding professional text or logo watermarks — entirely in your browser, with no uploads and no sign-up.
Why Watermark Your Images?
- Protect copyright on photography, illustrations, and designs
- Brand product images with your company name or logo
- Add confidentiality labels to business documents and screenshots
- Prevent unauthorized use of creative work shared online
Text Watermark Options
- Custom text: type any text, name, URL, or copyright message
- Font size and color control
- Opacity setting (transparent to opaque)
- Position: center, corner, tiled, or diagonal
Logo Watermark Options
- Upload your logo PNG (transparent background recommended)
- Resize and position the logo watermark
- Adjust opacity for subtle or bold branding
Privacy
Images are processed entirely client-side using HTML5 Canvas. No image data is uploaded or stored on any server.
Frequently Asked Questions
Yes — completely free with no sign-up and no watermark added to your output image.
No. All processing uses HTML5 Canvas in your browser. Images never leave your device.
Yes — upload a PNG with a transparent background for the cleanest logo watermark effect.
Yes — use the opacity slider to adjust transparency from fully opaque to nearly invisible.
JPG, PNG, and WebP images are supported for both input and output.
Yes — the tiled or diagonal option repeats the watermark across the full image for maximum protection.
The tool preserves original image quality. PNG output keeps lossless quality.
Currently one image at a time. Download and then upload the next image to watermark.
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