100% Private (Local Processing)
Resize Multiple Images Online
Resize dozens of images at once by percentage scale or pixel bounding boxes and download as a ZIP archive.
Loading tool interface...
How to use Bulk Image Resizer
- 1
Select and upload multiple images.
- 2
Choose a resizing mode: 'Scale by Percentage' or 'Specific Dimensions'.
- 3
Configure scaling percentages or target max width/height limits.
- 4
Click 'Resize All Images' and download the output ZIP archive.
Capabilities
- Resizes multiple images in parallel client-side
- Supports proportional percentage scales or custom dimensions
- Option to lock aspect ratio to prevent pixel stretching
- Assembles resized images into a clean ZIP folder
Privacy & Processing
This tool operates in a sandbox directly inside your web browser. All parsing, processing, and downloads are rendered locally. Your file size, metadata, and contents never cross the network. It works completely offline.
Frequently Asked Questions
Will this squish my images?
No. If you choose 'Specific Dimensions' and check 'Lock aspect ratio', images scale proportionally without warping.