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Image guide

How to Resize Multiple Images at Once

Resize up to 25 images in one browser-based batch.

Resizing a folder one image at a time is slow and makes it easy to apply inconsistent dimensions. A batch workflow keeps one rule across the set.

Start with the outcome you need

Set a maximum width and height that match the destination. Images smaller than the limit should not be enlarged unnecessarily.

Make the important choice before exporting

Keep the format appropriate for the source and the destination. A web batch may benefit from WebP, while a workflow that needs transparency may need PNG.

See the process in action

Watch the short workflow, then use the written steps below to make the right choices for your image.

Prefer reading? Continue below.

A final check that saves rework

Download and spot-check a few outputs before sending the whole set. One unusual portrait or screenshot can reveal a setting that needs adjustment.

A practical bulk image resizer workflow

  1. Choose the source carefullyStart with the clearest file you have and decide the result you need before changing any settings.
  2. Make one deliberate adjustment at a timeA focused change is easier to evaluate and easier to repeat when you need another version.
  3. Review the exported copy in contextCheck the final image at the size and on the device where it will actually be used.
Try it yourself

Try the Bulk Image Resizer

Use the interactive Bulk Image Resizer when you are ready to apply the method to your own file.

Drop your images here

or choose files from your device

PNG, JPEG, or WebP · Up to 40 MB
Open Bulk Image Resizer

Additional information about bulk image resizer

The best result comes from matching the tool to the real job rather than applying the strongest setting by default. Keep an original file, make a separate download for the destination, and review it at the size people will actually see.

ImageDock processes this workflow in the browser. That makes it practical for quick, focused work, while still leaving you in control of the file you choose to download and share.

Frequently asked questions

Can I use ImageDock for bulk image resizer?

Yes. Upload the relevant file, use the tool controls, review the result, and download a new copy.

Does ImageDock change my original file?

The workflow creates a processed download in the browser, so you can keep the original file separately.

Use the Bulk Image Resizer