Resize a JPG
Bring JPEG photos to the pixel size a form, a web page or a print lab asks for.
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How it works
Add your images
Drag and drop, paste, or pick files. They upload over an encrypted connection.
Pick a quality or a target size
Use the quality slider, or tell it exactly how many KB or MB you need.
Download
Save each file, or grab them all at once as a ZIP.
A JPG cannot be resized in place. The photo is decoded, scaled to the new dimensions and encoded again, and the quality of that last step decides how the result looks. Here it is done once, at quality 90, with an encoder that produces smaller files than a camera does at the same setting. The output is always a JPG, whatever you change.
Type a width, a height or both, or a percentage. With one side filled in, the other follows the proportions of the photo, so nothing is stretched. The panel shows the dimensions each picture will have before you download, and the same setting is applied to every photo in the batch.
The rotation a phone records for portrait shots is applied to the pixels first, so a resized photo never turns up on its side. Location and camera data are removed unless you choose to keep them. Photos are uploaded over an encrypted connection, resized on our own servers and deleted an hour later at most.
How pixel size and file size move together
For photographs at quality 90, the weight of a JPG follows its pixel count closely. A twelve-megapixel photo of 4000 by 3000 pixels weighs 3 to 5 MB. At 2000 by 1500 it is around 800 KB. At 1200 by 900, a common maximum for upload forms, it is near 300 KB, and at 800 by 600 it is 120 to 150 KB.
Halving the width and the height therefore does more for file size than any change of quality you would accept. If a limit in kilobytes is what you are really working against, resize to the dimensions the destination shows first, and only then think about quality.
Resize and compress in one pass
Each time a JPG is saved it loses a little, and the losses add up. People often resize in one program, save, and then compress the saved file in a second one. That is two rounds of loss for one result. Here both happen in a single encode: set the dimensions in Resize, then lower the quality slider or switch to Target size in the same panel, and the photo is scaled and written once.
For photos headed to a website, 80 is a good quality at reduced sizes. For a form with a hard limit, enter the limit as the target and let the search choose.
When the shape has to change as well
Sometimes the destination wants a shape your photo does not have: a square for a profile, 1200 by 630 for a link preview. With both width and height filled in, the fit setting decides what happens. Fill and crop covers the frame and trims the overflow evenly from both sides. Fit and pad keeps the whole photo and fills the leftover space with a colour you pick, since a JPG has no transparency to leave there. Stretch forces the photo into the frame and distorts it, which is rarely what anyone wants for a picture of people.
Frequently asked questions
Does resizing a JPG reduce its quality?
Fewer pixels hold less detail, and that is the point. The re-encoding itself, at quality 90, adds no loss you can see. Keep the original if you may need the full size later.
Can I make a JPG bigger?
Switch on Allow enlarging for a modest increase. For doubling a small photo, the AI upscaler on this site gives a visibly sharper result than stretching does.
How do I resize a JPG to a file size, such as 200 KB?
Choose Target size and enter 200 KB. Set the pixel dimensions as well if you know them; the search then spends the whole allowance on that size.
Can I set the resolution in dpi?
Yes. Change the unit to Print, enter the size in millimetres or inches and the dpi. The pixel dimensions are calculated and the resolution is written into the file.
Will a batch of photos in portrait and landscape be handled correctly?
Yes, if you set only one side, for example a width of 1600. Each photo keeps its own proportions. Setting both sides forces every photo into the same frame.
My photo is a HEIC or PNG. Can I resize it here?
This page takes JPG files only. Use the general resize page on this site, which accepts every format and can save the result as JPG.