Resize Image Online

Enter the width or height you want in pixels: the other side follows the original proportions, and the image is resampled on your device.

The editor is designed for a computer or tablet: open this page on a larger screen to edit your image.

100% local processing, nothing is uploaded

How does it work?

Drop your image: it opens in the editor and the Export window appears. Type the width or height you want in pixels: with “Keep proportions”, the other side is calculated automatically. Untick that box to set both values (the image is then stretched).

The preview and the real file size update with every change. Choose the format (PNG, JPG or WebP), then click Download. The “Original size” button goes back to the starting size.

Examples

Shrinking a smartphone photo for a website

A 4032 × 3024 pixel photo, reduced to 1200 pixels wide while keeping proportions: the height becomes 1200 × 3024 ÷ 4032 = 900 pixels. The image has 11 times fewer pixels (1.08 MP instead of 12.2).

Making a thumbnail of a required size

A website asks for a 600 × 400 pixel thumbnail (3:2) and your photo is 4000 × 3000 (4:3). First crop to 3:2 with a custom ratio of 1.5 (4000 × 2667), then export at 600 pixels wide: you get exactly 600 × 400, with no distortion.

Frequently asked questions

Does enlarging an image improve its quality?
No. Enlarging adds pixels calculated from their neighbors, but it cannot recreate missing detail: the image looks softer. Beyond roughly 150%, the loss becomes visible.
What size should I use for the web?
For a full-width image, 1920 pixels wide is enough; for an image in an article, 1200 pixels; for a thumbnail, 400 to 600 pixels. Anything larger makes the file heavier with no visible difference on screen.
Is there a size limit?
Each image can weigh up to 50 MB and measure up to 8,192 pixels per side, within a 24-megapixel limit (a 12 MP smartphone photo is no problem). A document holds up to 48 layers, and up to eight documents can be open at once.
Are my images uploaded to a server?
No. Images are opened, edited and encoded in your browser, on your device. No image, file name or layer text is uploaded: you can even go offline once the page has loaded. Closing the tab erases your work in progress.

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