Image Resizer
Change image dimensions by pixels or percentage, with the aspect ratio kept.
Runs in your browser using Canvas 2D + toBlob — nothing is uploaded
How to use it
- Add one or more images.
- Choose resize by pixels or by percentage.
- Leave "Keep aspect ratio" ticked to avoid distortion — set width only and height follows.
- Press Resize, then download.
Questions
Can I enlarge a small image?
You can, but a browser cannot invent detail that is not there. Enlarging beyond about 150% usually looks soft. Downscaling is always safe.
What does "Keep aspect ratio" do?
It locks the width-to-height relationship, so setting one dimension calculates the other. Turning it off lets you set both, which will stretch the image.