What is image resizing?
Resizing shrinks an image's pixel dimensions to reduce its file size — handy when you need to fit an email attachment limit or a website's upload cap. This tool's strength is handling many images at once.
How to use it
① Upload multiple images
Drag and drop, click to select, or paste (Ctrl+V) — you can load several images at once.
② Automatically resized to 1000px on the long side
Every uploaded image is automatically shrunk so its long side is at most 1000px. Images already at or below 1000px are marked as needing no resize.
③ Download individually or as a ZIP
Download each image one at a time, or grab them all at once as a single ZIP file.
What makes this tool different
- Resize multiple images at once
- Download all the results together as a ZIP
- Images already small enough are automatically skipped
- Your images are never uploaded — everything runs in your browser (Canvas API)
- Need to crop a single image too? Try the Crop & Resize tool instead
Frequently asked questions
How is this different from Crop & Resize?
This tool is built for resizing many images at once and downloading them together as a ZIP. If you want to crop a single image, use the Crop & Resize tool instead.
Are my images uploaded to a server?
No. Resizing runs entirely in your browser (Canvas API), so your images are never sent anywhere.
Is it free?
Your first use is free. After that, it's ¥50 for a bundle of 30 uses.
What image formats are supported?
JPEG, PNG, WebP, and other common image formats.