Image Resizer
Image toolChange image dimensions with optional aspect-ratio lock.
This tool runs entirely in your browser. Your files never leave your device — nothing is uploaded.
Choose an image
Drop an image here or click to browseJPG, PNG or WebP · up to 25 MBBrowse files
Add an image to start resizing.
Resize
Add an image to enable resizing.
Frequently asked questions
Will resizing upload my image?
No. Resizing runs locally in your browser, so the image stays on your device.
Can I keep the aspect ratio?
Yes. Tick “Keep aspect ratio” and the matching dimension updates automatically as you type.
Which formats can I resize?
JPG, PNG and WebP are all supported.