Add Watermark to Images Online β Free & Private
Protect your photos with text or logo watermarks β fast, free, and private.
Images are processed locally in your browser whenever possible. If local processing isn't supported or fails, we automatically complete the job on our servers β no action required. Supports JPG, PNG, WebP, and GIF. Text and logo watermarks, batch processing, tiled patterns β no signup, no fees.
Why Use FastImageTools
Local-First Processing
Watermarks are applied in your browser by default using WebAssembly. Automatic server fallback if needed.
Instant Results
Preview your watermark in real time before applying. No signup or email required.
Completely Free
No watermarks on our watermarks, no file limits, no hidden fees. Professional-grade watermarking at zero cost.
Smart Positioning
Choose from corner, center, or tiled placement. Auto-scale adjusts watermark size relative to each image.
How to Add Watermarks
- 1
Upload Your Images
Drag and drop or browse your files. Batch upload supported β watermark dozens of images at once.
- 2
Configure Your Watermark
Add text or upload a logo. Adjust position, opacity, scale, and choose single or tiled placement.
- 3
Download Watermarked Images
Preview the result, then download files individually or as a ZIP archive.
Browser-Based vs Cloud Watermarking
FastImageTools (Local-First)
- Images stay on your device by default
- Instant processing β no upload wait
- Handles large files locally when possible
- Free with no usage caps
- Automatic server fallback if needed
Cloud-Based Tools
- βFiles uploaded to third-party servers
- βSpeed limited by upload and download
- βTypical 5β25 MB file size limit on free tiers
- βOften requires paid plans for batch or large files
- βRequires a stable internet connection
Example Result
Original
2.4 MB
product-photo.jpg
Watermarked
2.5 MB
Β© 2024 Studio β bottom-right, 60% opacity
Supported Image Formats
JPEG / JPG
Photos from cameras and phones. Add watermarks while preserving photo quality.
PNG
Screenshots and graphics with transparency. Watermark without affecting alpha channels.
WebP
Modern web format β add watermarks and keep the smaller file size advantage.
GIF
Simple animations and graphics. Watermark static GIFs with text or logos.
Frequently Asked Questions
Will adding a watermark reduce image quality?+β
Is it safe to watermark images here?+β
What is the maximum file size I can watermark?+β
Can I watermark multiple images at once?+β
Should I use a text or logo watermark?+β
What's the difference between single and tiled watermarks?+β
How is browser-based watermarking different from cloud tools?+β
Are my images uploaded to your servers?+β
Related Image Tools
Done watermarking? These tools work great as a next step:
Compress Image
Reduce file size of watermarked images for faster sharing.
Resize Image
Change dimensions for social media, email, or web.
Crop Image
Trim and reframe your watermarked images.
Convert to WebP
Switch to the modern WebP format for smaller files.
Remove Background
AI-powered background removal for product photos.
Metadata Editor
View, edit, or strip EXIF and GPS data from images.