Batch resize behavior
This page applies one width and height setup to every image in the queue.
Images are fitted inside the target dimensions while preserving their original aspect ratio.
Batch Resize Images Online
Apply one width and height setup to many images, then download the resized results without uploading the sources.
Multiple image queueShared width and heightJPG, PNG or WebP outputZIP download
Batch image resizer
Up to 20 images, 25 MB each, 200 MB total.
0 files selected
Total original: -
Total result: - · Saved: -
| File | Original size | Result size | Saved | Status | Download |
|---|---|---|---|---|---|
| Choose images to resize. | |||||
Only need one image?Use the single image resizer
How it works
- 1Choose or drop multiple images.
- 2Enter the output width, height, quality and format.
- 3Resize the queue locally and download results.
Privacy and limits
- Images are fitted inside the selected dimensions.
- JPG output uses a white background.
- Upscaling can reduce sharpness and large batches depend on memory.
Common use cases
- Preparing many upload-ready thumbnails
- Resizing photo sets for web layouts
- Reducing dimensions before compression
Format notes
- Downscaling usually reduces file size.
- Upscaling can make images softer.
- JPG output fills transparent areas with white.
Original test sample
- Resize several large photos to 1200 x 800 and compare result dimensions.
- Split very large batches if mobile browser memory becomes tight.
Frequently asked questions
Are my images uploaded?
No. ImgShrink processes selected images in your browser and does not upload them to a server.
Do batch tools upload files or save history?
No. The queue runs locally in your browser, and ImgShrink does not create an account, database record or saved image history.
Why is an output format unavailable or different?
The browser controls image decoding and export support. Some browsers may not export AVIF or may flatten unsupported transparency.
Source and compatibility notes
Batch limits are based on the current local browser workflow and are set to reduce memory failures on typical devices.
Last checked: 2026-09-07
Notes
- Files are processed locally in the browser queue.
- Large batches depend on available browser memory.
- Downloaded ZIP files are created on the device.