CampaignMorph

Image Mask Generator

100% Free · Client-Side

Upload an image, apply organic blob or geometric polygon clip masks, and download the output as a transparent PNG.

Drop an image here (or click to browse)

Select an image to apply a shape mask

Max 20MB per file

Shape Type

Blob Settings

Image Adjustments

Mask Adjustments

Live Preview

Add an image to preview

What is the Image Mask Generator?

The Image Mask Generator is a free tool that lets you crop pictures into beautiful, organic blobs and geometric polygons. Perfect for developers and designers creating modern website layouts, testimonial avatars, and hero section graphics without needing desktop software.

Features

Organic Blobs

Generate random, smooth blob shapes with customizable complexity and wiggle randomness.

Geometric Polygons

Create triangles, hexagons, octagons, and more with exact precision.

Transparent Output

Instantly export your masked image as a high-quality PNG with a fully transparent background.

Client-Side Privacy

All masking and image processing occurs directly in your browser. No server uploads.

Frequently Asked Questions

1. What is an Image Mask Generator?

This tool allows you to crop your uploaded images into unique, organic shapes like blobs or geometric polygons without using complex design software.

2. Is the output image transparent?

Yes! When you download the result, the masked area outside of your shape is completely transparent, saved as a high-quality PNG file.

3. Does the image quality degrade?

No. The tool processes the original resolution of your uploaded image directly in your browser. The output retains the original quality.

4. Are my images uploaded to a server?

Absolutely not. This tool is 100% client-side. Your images are processed locally within your web browser and are never uploaded or stored anywhere.