Batch resize images online

Batch resize and convert many images at once and download them all in a single ZIP. This free bulk image resizer lets you scale every image by percentage, cap the width or height while keeping the aspect ratio, or force an exact size, and optionally convert your JPG, PNG and WebP files with an adjustable quality slider. Whether you need to resize multiple images for the web, shrink a whole folder of photos, or convert a batch to a smaller format, everything happens instantly. Every image is processed 100% in your browser, so your images are never uploaded to any server and stay completely private.

🔒 100% private — files never leave your device

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How to use

  1. Drop or select all the images you want to resize — the file list keeps every one of them in order.
  2. Pick a resize mode (by percentage, max width, max height or exact size) and set your target dimensions.
  3. Choose an output format — keep original, JPG, PNG or WebP — and adjust the quality slider for lossy formats.
  4. Click Process and download the finished images.zip archive with all your resized images inside.

Frequently asked questions

Are my images uploaded anywhere?

No. Every image is decoded, resized and re-encoded locally in your browser and bundled into a ZIP on your own device, so nothing is ever uploaded to a server and your images stay fully private.

What image formats does the batch resizer support?

You can add any images your browser can decode, including JPG, PNG and WebP. On output you can keep each image's original format or convert everything to JPG, PNG or WebP.

Is the aspect ratio kept when resizing?

Yes — the aspect ratio is preserved in the By percentage, Max width and Max height modes. Only Exact size mode stretches each image to the precise width and height you enter.

How many images can I resize at once?

There is no fixed limit — you can add and resize as many images as you like in one batch. Since everything runs locally, very large batches depend only on your device's memory and speed.

Does the quality slider affect the output?

The quality slider applies only to the lossy JPG and WebP formats and lets you balance file size against image quality. PNG and Keep original ignore it, since PNG is lossless.

How do I get my resized images back?

All processed images are bundled into a single images.zip file that downloads to your device. Unzip it to find every resized image, renamed with the correct extension for its output format.

About this tool

Free batch image resizer that runs 100% in your browser — resize and convert many JPG, PNG or WebP images by percentage, max width/height or exact size, no uploads.

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