Drop images here or click to upload
Add text or image watermarks | Batch processing | Max 50MB each
Images are processed entirely in your browser. Nothing is uploaded to any server.
Add custom text with your choice of font, size, color, and transparency.
Upload your logo or signature image as a watermark.
Apply the same watermark to multiple images at once.
Add a watermark to images online free with FreeToolBox — protect your photos, artwork, and graphics with custom text or image watermarks in seconds, right in your browser. Photographers, graphic designers, and content creators use watermarks to assert copyright and brand ownership over their work before sharing it online. Our tool gives you full control: choose your watermark text or logo, adjust the font size, opacity, color, rotation, and position, and preview the result in real time before downloading.
All watermarking happens locally in your browser using the HTML5 Canvas API — your images are never uploaded to any server. Process multiple images at once with the same watermark settings. The output is completely clean — no secondary watermark from FreeToolBox itself. Totally free, no account required.
Use Image Watermark when you need ownership, branding, or draft labeling baked into the picture itself. If the file is too heavy for sharing after watermarking, continue with Image Compress. If the final asset needs exact dimensions for stores or social platforms, follow with Image Resize. If you need a different output format for delivery, finish with Image Convert.
No-upload watermark workflow: compared with upload-first watermarking tools, FreeToolBox keeps brand assets, product photos, previews, and client materials on your device. That matters when the images are confidential, commercially sensitive, or part of an unreleased campaign.
Continue your image workflow: visit the Image Tools hub for compress, resize, convert, crop, OCR, and cleanup tasks in one place.
Yes. You can upload a PNG or WebP logo (ideally with a transparent background) and place it as an image watermark. Adjust the size and position to find the right placement for your brand mark.
Yes. This tool works well for ecommerce product images, listing previews, creator graphics, and branded social assets where you want a visible logo, store name, or copyright mark.
For copyright protection without overpowering the photo, 30–50% opacity is typical. Watermarks at this level are clearly visible to viewers but don't distract from the image content. For portfolio previews, 60–80% makes the watermark more prominent to deter misuse.
Yes. Upload multiple images and apply the same watermark settings to all of them. Download each result individually or use your browser's batch download.
If the watermarked image is still too large, use Image Compress. If it needs an exact social, ecommerce, or marketplace size, continue with Image Resize. If the final delivery format should change after branding, use Image Convert.
Never. FreeToolBox is 100% free and adds no branding, logos, or watermarks of its own to your output images. What you download is exactly what you see in the preview.
