AIImage Tools

Watermark Image Tool

Add text watermarks to JPG, PNG, and WebP images online for free. Everything runs directly in your browser.

Checks that make image editing safer

Before editing

  • Keep the original image and edit a copy when possible.
  • Check the final size requirements for social posts, blogs, forms, or documents.
  • For images with text or logos, make sure cropping and resizing will keep them readable.

After editing

  • Preview the result on both mobile and desktop if it will be published online.
  • If the file is still large, use image compression before publishing or sharing.
  • Compare visual edits such as watermarking or grayscale with the original to confirm the result fits the goal.

Need help choosing the right workflow?

The guide section covers format differences, compression tips, and common PDF workflows so you can choose the right tool with more context.

Browse guides

Common next steps

Image Compress

A good next step after visual edits when the final file still needs to be lighter.

JPG to PNG

Useful if the edited image also needs to be exported into another format for the next workflow.

Image to PDF

Helpful when prepared images need to be bundled into a shareable PDF afterward.

What is Watermark Image Tool?

This free watermark tool lets you add text watermarks to JPG, PNG, and WebP images directly in your browser. It is useful for copyright text, brand names, website names, sample labels, and social media image protection. You can adjust font size, opacity, color, and position. Since everything is processed locally, your files are not uploaded to an external server.

Where Watermark Image Tool fits best

Watermark Image Tool is part of the image-preparation stage. It is most useful when you need to adjust how an image looks or behaves before publishing, sharing, or continuing with another step.

These small edits matter more than they look. A quick resize, crop, or cleanup step often makes the final file much easier to use.

A simple editing workflow

It usually helps to make visual changes first and worry about final file size or format afterward.

Keeping the original untouched and working from copies gives you a safer workflow when you are preparing multiple versions.

Helpful reminders

  • Check whether the destination has dimension or file-size limits before you start.
  • If you plan to do more than one edit, visual cleanup usually comes before compression or format conversion.
  • Keep the original image untouched so you can reuse it later.
  • Review the final result on the type of screen where people will actually see it.

How this tool fits the workflow

Best use case
This tool is most useful during image preparation, especially before publishing, sharing, or packaging a final version.
Typical next step
After this step, users often continue with Image Compressor or Resize Image.
Main caution
Some edits are hard to undo, so keeping the original image separately is still the safest option.
Recommended approach
Start with the final destination in mind, make only the edits you need, and optimize the finished copy last.

How to Use

  1. Upload an image file
  2. Enter your watermark text
  3. Adjust font size, opacity, color, and position
  4. Select an output format if needed
  5. Click Add Watermark and download the result

FAQ

Are my images uploaded to a server?

No. Everything is processed locally in your browser, so your files are not uploaded to an external server.

Can I add an image logo watermark?

This version supports text watermarks. The structure is easy to extend later for image logo watermarks.

Can I adjust opacity?

Yes. You can control how visible the watermark is with the opacity slider.

Does it work on mobile devices?

Yes. It works on phones, tablets, and desktop browsers that support modern web features.

Related tools for the next step

Image CompressorResize ImageCrop ImageRotate Image