Image Resizer

Switch to by dimensions, type the width and height you need in pixels, and press Resize. Keep proportions is on by default, so you can fill in just one field and the other follows. The resized file downloads with its new pixel size in the name, ready to use.

Because it was resized to a shape different from the original, which happens in Stretch mode. A 4:3 photo forced into a square gets compressed sideways. Keep proportions avoids this entirely, and this tool warns you the moment a Stretch result will distort, before you download it.

Enlarging asks the browser to invent pixels that were never captured, so edges soften and detail smears. Below about 150% it is usually acceptable; past that it is clearly soft. This tool flags every upscale and marks the strong ones, so a blurry result is never a surprise.

Resizing changes the whole image to new dimensions, keeping everything in frame. Cropping cuts pixels away to fit a shape, losing the edges. Crop to fill mode does both: it scales to cover your box at the right proportions, then trims the overflow from the centre so nothing looks squished.

Yes. Drop as many JPG, PNG or WebP files as you want, set the size once, and every file is resized with the same setting. When more than one is done, a Download all button packs every result into a single zip built in your browser, so you get one file instead of clicking repeatedly.

No. Every image is decoded, resized and re-encoded on your own device using the Canvas built into your browser. Files are never sent anywhere, never logged and never stored, which is also why there is no upload size cap. Close the tab and everything you added is gone.

Yes. Switch to by percentage and enter a number, for example 50 to halve every dimension or 200 to double it. Percentage always keeps the original proportions, so nothing distorts. It is the fastest way to shrink a batch of differently sized photos by the same amount at once.

JPG, PNG and WebP, as both input and output. The resized file keeps the same format you started with. It does not convert between formats, for example turning a PNG into a WebP, and it does not read HEIC files from an iPhone, since browsers cannot decode that format on their own.

Usually yes, when you make the image smaller: fewer pixels means a smaller file. But this is a resizer, not a compressor, so it does not target an exact kilobyte size. If you need a file under a specific size in KB, the image compressor searches quality for you instead.

No, it works in pixels and percentage only, because screens are measured in pixels and that is what most people resizing for the web actually need. DPI only changes the printed physical size, not the pixels themselves, so adding it here would add a setting that confuses more than it helps.