Image resizer
Set the width and height you need. Nothing is uploaded — the resizing happens on your device.
JPG, PNG, WebP and HEIC. Your file is processed on your device.
Leave one blank to keep the original proportions. Set both and the image is cropped from the centre rather than stretched.
How do I resize an image?
Fill in one dimension, or both
Enter only the width and the height follows automatically, keeping the original proportions. That is what you want most of the time: the image gets smaller, nothing is cut off and nothing is stretched.
Enter both and you are asking for a specific shape. If that shape does not match your image, something has to give — and FileBelow crops from the centre rather than stretching, because a stretched photograph looks wrong in a way people notice immediately even when they cannot say why. Drag the crop frame first if the centre is not the part you want to keep.
Why the results look sharper than you might expect
Reducing an image by a large factor in one step throws away most of the source rows and columns before any filtering happens. That is what produces the harsh, aliased edges you get from naive resizers.
FileBelow halves the image repeatedly and then makes the final step, so every output pixel is informed by all the source pixels it covers. Rotation is handled before any of that: phone photographs record their orientation as metadata rather than in the pixels, and resizing without applying it first is how images end up sideways.
Common questions
Is this image resizer free?
Yes, with no account, no watermark and no limit on how many images you resize.
Are my photos uploaded anywhere?
No. The resizing happens in your browser on your own device. The site is static and has no server that could receive an image.
Can I resize an image without losing quality?
Making an image smaller always discards information — there is nowhere for the extra pixels to go. What you can avoid is visible damage, and a clean downscale is far gentler than heavy compression because it removes detail evenly rather than introducing blocks and halos. Enlarging is the opposite problem: it cannot add detail that was never captured, only spread the existing pixels over a bigger grid.
What file formats does it support?
It reads JPG, PNG, WebP and HEIC, and writes JPG, PNG or WebP.
Can I resize and set a file size limit at once?
Yes. Open Advanced options and set a maximum file size alongside your dimensions. FileBelow will hold the dimensions fixed and vary compression to meet the limit, and if the two requirements genuinely conflict it will tell you rather than quietly breaking one of them.
Does it work on a phone?
Yes — it is built for phones first, because most people reaching for this are holding the photo that got rejected. It works in Safari on iOS and Chrome on Android.