Protect your photos and graphics with a custom text watermark. Choose the position (tiled, centered, or any corner), set opacity, size, rotation and color, then download instantly — all rendered in your browser.
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Privacy first, always
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Protect your photos and graphics with a custom text watermark. Choose the position (tiled, centered, or any corner), set opacity, size, rotation and color, then download instantly — all rendered in your browser.
Whether you're a professional or just need a quick result, the Image Watermark gives you a fast, reliable image tool that works instantly in your browser. There's no software to install and nothing to sign up for — open the page, get your result and move on. Because everything runs on your own device, it's private by default and available whenever you need it.
The Image Watermark is part of TechToolsCenter — a free, privacy-first collection of 118+ online tools. Everything runs 100% in your browser, so your data stays private and results are instant.
Input
Output
Formats
Add an image from your device. It's processed locally using your browser's canvas — never uploaded.
Crop, resize, convert or adjust with the controls. The preview updates in real time.
Inspect the result at full quality and fine-tune the settings until you're happy.
Export the finished image in your chosen format. No watermarks, no limits, fully private.
Tips
Common mistakes
Best practices
Input
Image upload — e.g. image watermark
Output
Image download, generated instantly in your browser
No — the watermark is drawn entirely in your browser using the HTML canvas. Your image never leaves your device.
It's free, private and works instantly — no sign-up required.
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