How to resize an image
- Enter a target width and/or height in pixels — or click a percentage chip to scale proportionally.
- Drop your images into the box. Each one is resized instantly, keeping its original format.
- Download the resized copies — originals on your device are untouched.
Why resize images?
Cameras and phones capture photos far larger than most uses need — a 12-megapixel photo is 4000 pixels wide, but a website hero image needs 1600 and an avatar needs 400. Resizing to the dimensions you actually need cuts file size more than any compression setting can, makes uploads fit strict pixel requirements (profile photos, marketplaces, print services), and speeds up any page the image lives on. With aspect ratio locked, proportions always stay correct.
Frequently asked questions
How do I resize without stretching?
Keep the “Lock aspect ratio” box checked and enter just one dimension (width or height). The other dimension is calculated automatically so the image never looks squashed or stretched.
Does resizing reduce image quality?
Shrinking an image keeps it sharp — browsers use high-quality downscaling. Enlarging beyond the original size can't add detail, so upscaled images may look soft.
What sizes should I use for social media?
Common targets: 1080×1080 for Instagram posts, 1200×630 for link previews and Facebook, 1280×720 for YouTube thumbnails, and 1500×500 for X/Twitter headers.
What format does the resized image come out as?
The same format you put in — a PNG stays PNG, a JPG stays JPG, a WebP stays WebP. Use the converter tools if you also want to change format.