smaller dimensions
Resize an image, proportions kept
Reducing dimensions is the most effective way to shrink an image, and the least visible if the picture was larger than it needed to be. Pick a width and the height follows.
Files are processed on your device · nothing is uploaded, stored or logged
How it works
Pick your file. The browser opens it straight from disk. There is no upload, so there is nothing to wait for.
Nothing is downloaded first. Unlike the video tools, image conversion uses what is already built into your browser. It starts instantly.
Your machine does the work. The image is drawn to a canvas and written out in the new format, which takes a fraction of a second.
Save the result. The file goes straight to your downloads folder and the original is untouched.
Most images are far larger than they need to be
A modern phone produces photographs four thousand pixels across. A web page displays them at eight hundred. The other three quarters are downloaded, decoded and then discarded by the browser, costing time and bandwidth for nothing at all.
Resizing removes that waste at the source. Unlike compression, which trades quality for size, this trades resolution nobody was seeing — which is why it costs nothing visible when the image was oversized to begin with.
Proportions are preserved automatically. Enter a width and the height is calculated to match, so nothing stretches.
It will not enlarge
Choosing a width larger than the original leaves the image as it is rather than stretching it. Enlarging cannot create detail that was never captured — every tool that offers it is either interpolating, which produces a soft waxy result, or running models far too heavy for a browser tab.
Common questions
Will it stretch my image?
No. Height is always calculated from width to preserve the original proportions.
Can I make an image bigger?
No, and deliberately so. Enlarging cannot add detail that was never recorded.
Which width should I choose?
1920 for something viewed full screen, 1280 for a web page, 800 for a thumbnail or an email.
Is my image uploaded?
No, resizing happens in your browser.