Resize Image
Change a photo to the exact pixel size you need. Processed right in your browser.
Drop your image file here
or click to choose · HEIC JPG PNG WebP AVIF GIF BMP
Choose fileHow to use
- Upload an image and its current pixel size appears.
- Type the width and height you want, or use a quick preset (50%, 25%, …). Keep 'aspect ratio' on so the photo doesn't distort.
- Hit 'Resize' and the resized file downloads right away.
Frequently asked questions
Are my photos uploaded to a server?+
No. Resizing happens entirely inside your browser and your photo is never sent anywhere.
What does 'keep aspect ratio' do?+
When you change the width, the height follows automatically so the photo doesn't stretch or squash. Leave it on unless you have a specific reason not to.
Does enlarging improve quality?+
No. Upscaling invents pixels that weren't there, which looks blurry. Resizing works best in the shrinking direction.
What size should I resize to?+
For web posts, 1200–1920px on the long edge; profile pictures 400–800px; email attachments around 1024px. If a site specifies exact dimensions, enter those values directly.
Is there quality loss?+
Downscaling uses high-quality interpolation and stays sharp. JPG/WebP output adds slight compression loss, but it's saved at high quality (90%) — hard to notice.
Is it really free?+
Yes. No sign-up, no payment, no limits and no watermark.
Guide
How to choose pixel dimensions
An image's real size is measured in pixels. A Full HD monitor is 1920px wide; phone screens are around 1080px. For anything viewed on screen there's rarely a reason to exceed 1920px on the long edge — bigger just wastes file size.
For submissions, follow the required spec exactly: if a portal asks for 300×400px or 413×531px, type those values in.
When the target ratio differs from the original
Turn 'keep aspect ratio' off to set width and height independently — but if the ratio differs from the original, the photo will look stretched or squashed.
To fit a different ratio properly, crop the photo to that ratio first in your photo app, then use this tool to hit the exact pixel size. A crop tool is on our roadmap too.
Resize vs. compress — what's the difference?
Resizing changes the pixel count itself; compression keeps the pixels and packs them more efficiently. If your goal is just a smaller file and no specific dimensions are required, the 'Compress Image' tool is simpler.
If a size requirement is explicit — 'max width 800px' — use this tool to hit it exactly. Shrinking the dimensions naturally shrinks the file size too.