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100% Private – Images never leave your device

Bulk Image Resizer

Resizing is often the biggest saving of all: a 4000-pixel phone photo shipped into a 1200-pixel blog container wastes most of its bytes. This page resizes a batch by width or by percent, keeps aspect ratio, and lets you convert format at the same time.

Drag and drop images here, or click to choose files

Up to 20 images per batch. For dozens of images, run another batch of 20.

If both width and percent are set, percent wins. Leave percent at 0 to use width only.

How to use this tool

  1. Drop up to 20 images.
  2. Set a max width in pixels, or a percent such as 50%.
  3. Press Resize all and download the resized files as a ZIP.

Why this page is separate

Each tool on this site has its own page, its own title, and its own explanation, so search engines can match a specific search — for example, this exact job — to this exact page, instead of to one generic homepage. That is also why the steps and questions above are written for this tool only, not copied from the other tools.

Does resizing keep aspect ratio?

Yes. Setting a width scales the height by the same ratio, so images are not stretched.

Should I resize before or after compressing?

Resize first. A smaller image compresses to a much smaller file than the same photo compressed at full size.

Can I resize to an exact height?

This page resizes by width or percent to keep aspect ratio safe. For exact width and height together, use the Crop page.

Back to all tools

All tools on this site run in your browser. No upload, no signup, no external code libraries in v1.