Are NanoTools completely free to use?

Yes, all basic tools on NanoTools are completely free to use with no registration required. We offer premium features for power users.

Is my data secure when using NanoTools?

Your files are processed securely and are automatically deleted after processing. We do not store your files or data on our servers.

No installation required. All tools work directly in your browser on any device - computer, tablet, or smartphone.

We support a wide range of formats including PDF, JPG, PNG, WebP, GIF, JSON, XML, CSV, and many more depending on the tool.

Add watermark to images online for free. Protect photos with text or logo watermarks. Customize position and transparency.

Drop main image here or click to browse

image/* • Max 50MB

1

Select image to watermark

2

Select text or image watermark

3

Set text/image, position, and opacity

4

Save watermarked image

Yes, upload your logo as an image watermark with transparent background (PNG recommended).

Top-left, top-right, center, bottom-left, or bottom-right positions available.

Yes, adjust opacity from 10-100% for subtle to prominent watermarks.

Watermarks deter casual theft but may be removed with advanced tools. Consider permanent watermarks for critical protection.