Resize Image by Pixels — Free Online
Set the exact width or height in pixels and the resizer does the rest. Lock aspect ratio to keep proportions, or unlock for an exact target.
When to resize by pixels
Hitting a specific layout cap (800 px wide for a blog), a platform spec (1080 wide for Instagram), or a file-size target (resize then compress).
Upscale vs downscale
Downscaling is lossless visually. Upscaling beyond 2× usually softens the image; use the Image Enhancer instead, which has a dedicated 2× upscale mode tuned for photos.
Frequently asked questions
What's the maximum dimension?
10,000 pixels per axis on the resizer. Most use cases stay well below 4000.
Is it actually free?
Yes. No signup, no daily cap on normal personal use, no watermark on the output. Display ads keep the site free.
Does it work on a phone?
Yes. The upload box opens the camera roll on mobile browsers directly.
What happens to my photo?
Uploads are processed to return a download link and removed automatically within an hour. We do not view, share, or sell your files.