Image Resizer
Resize by pixels or percentage, keep the aspect ratio.
Runs 100% in your browser — nothing is uploaded
Resize JPG, PNG, and WebP images to exact pixel dimensions or by percentage, with the aspect ratio locked so nothing stretches. Preview the new size, then download — all in your browser, with no upload and no quality-destroying round trip through a server.
Frequently asked questions
Are my images uploaded to resize them?
No. Resizing runs entirely in your browser on a canvas. Your images never leave your device.
Can I keep the aspect ratio?
Yes — the ratio is locked by default, so setting the width updates the height automatically. You can unlock it to stretch to exact dimensions if you need to.
Will resizing reduce quality?
Making an image smaller is essentially lossless in perceived quality. Enlarging beyond the original resolution will look softer, since there's no extra detail to invent.
Which formats can I resize?
JPG/JPEG, PNG, and WebP. You can keep the original format or export to a different one on the way out.
Related tools
Handy companions people often use alongside Image Resizer.