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Neuctra ToolsDeveloper Utilities
Image Tools

Watermark Image

Add your logo or custom image watermark to photos with a live preview. Everything renders locally in your browser, so your images are never uploaded.

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About Watermark Image

Watermark Image lets you add your own logo or image watermark to a photo directly in your browser. Upload your main image, add a PNG, JPG, or WebP watermark, then control its size, opacity, rotation, and position while watching the result update live.

Transparent PNG logos work especially well for branding photography, product images, portfolio previews, social media graphics, and other visual content. Everything is processed locally on your device, so your images never need to leave your browser.

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How to Add an Image Watermark

  1. Upload the photo you want to watermark.
  2. Upload your logo or watermark image. Transparent PNG files are ideal for logos.
  3. Choose where the watermark should appear using the nine-point position selector.
  4. Adjust the watermark size, opacity, and rotation until it looks right.
  5. Click Download Image to save the finished photo.

Built for Speed and Privacy

Full Resolution Output

The watermark is rendered onto your image at its original pixel dimensions.

Live Canvas Preview

Size, opacity, position, and rotation changes are reflected immediately in the preview.

Custom Logo Watermark

Upload your own logo or image instead of manually creating a text watermark.

Private by Design

Your original image and watermark stay on your device and are processed locally in your browser.

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Who Should Use This

  • Photographers adding their logo to portfolio previews and client proofs.
  • Online sellers branding product photos with a store logo.
  • Content creators adding a consistent visual mark to social media graphics and thumbnails.
  • Small businesses branding marketing images without needing dedicated image-editing software.
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Privacy First

Your photos and watermark files are never uploaded, stored, or transmitted anywhere. Watermark Image processes everything locally inside your browser using the HTML canvas engine, so your files stay on your device from start to finish.

Upload your main photo and then upload a PNG, JPG, or WebP logo as the watermark. Choose its position, size, opacity, and rotation, then download the finished image directly in your browser.
Yes. Transparent PNG files work especially well for logos and brand marks because the transparent areas remain invisible when the watermark is placed over your photo.
No. Both your original image and watermark image are processed locally inside your browser using the canvas API. The files are not uploaded or stored on a server.
Yes. You can place the watermark in any of nine positions: top left, top center, top right, middle left, center, middle right, bottom left, bottom center, or bottom right.
Yes. Use the opacity slider to make the watermark subtle or prominent, and use the rotation control to rotate the logo from -45 to 45 degrees.