Dual Whats

In-browser bulk image cropping tool

This free online tool allows you to mass crop images, using a custom crop mask for each image.

All the work is done in the browser, no images are uploaded to a server, and at the end you will be able to download a zip file containing your cropped images.

Based on open-source software available at Github.

Known to work on:

• Firefox (desktop)
• Chrome (desktop, Android)
• Safari (desktop, iOS, iPadOS)
• Edge (desktop)

Known not to work on:

• Chrome (iOS, iPadOS) - Use Safari instead

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Required

1. Select images to crop / resize

Select as many images as you like from your computer. They are not uploaded to a server (cropping is done in the browser).

If you have a low-memory device (eg. iPhone), you may wish to download a zip file after every 20 or so images.

Use sample images

Drop images here...

{{ fileQueue.length }} images ready for cropping.

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2. Select desired width and height

Here you can select the desired size of your images (eg. 1200 by 1000 pixels).

• Resize to at most the given width and height (may be smaller)
• Resize to exactly the given width and height (may need to upsize)
• Keep the size of the selected crop (large as possible)

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3. Select target aspect ratio for images

Here you can select your desired aspect ratio. Common aspect ratios are 1:1 (square), 4:3 and 16:10.

If you have a desired width and height for your images you can enter that here (eg. 1000 by 800).

:

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Required

Select cropping mask for {{ fileQueue.length }} images

{{ fileQueue[imageIndex].fileName }}

Crop size: {{ cropWidth }} x {{ cropHeight }}

Download zip

Based on open-source bulk image cropper.