Add watermark to your images.

Stamp custom text across your images. Mark as DRAFT or CONFIDENTIAL — no upload, images stay on your device.

🗜️ Compress 🖼️ PNG→JPG 🖼️ JPG→PNG ⚡ PNG→WebP ⚡ JPG→WebP 🔄 WebP→PNG 🔄 WebP→JPG 📱 HEIC→JPG 🎨 SVG→PNG 🖌️ BMP→PNG 📐 Resize ✂️ Crop 🔃 Rotate 💧 Watermark
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Select your image

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🔒 Images are processed locally — nothing is uploaded

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🛡️ 100% Private — images never leave your device
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All Image Tools

Everything you need to edit, convert, and optimize your images — privately.

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Compress Image

Reduce image file size.
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PNG to JPG

Convert PNG images to JPG format.
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JPG to PNG

Convert JPG images to PNG format.
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PNG to WebP

Convert PNG images to WebP format.
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JPG to WebP

Convert JPG images to WebP format.
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WebP to PNG

Convert WebP images to PNG format.
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WebP to JPG

Convert WebP images to JPG format.
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HEIC to JPG

Convert iPhone HEIC photos to JPG.
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SVG to PNG

Convert SVG vectors to PNG images.
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BMP to PNG

Convert BMP images to PNG format.
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Resize Image

Change image dimensions.
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Crop Image

Crop images to any area.
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Rotate & Flip

Rotate or flip images.
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Add Watermark

Add text watermark to images.

How to Add a Watermark to Images Online for Free

Protect your images by adding a repeating diagonal text watermark. Perfect for marking photos as CONFIDENTIAL, DRAFT, SAMPLE, or adding your name/brand. The watermark appears as a tiled pattern across the entire image.

100% Private

All watermarking happens in your browser. Your images are never uploaded to any server. Safe for client proofs, portfolio protection, and sensitive images.

📝 From the blog
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