Resize images
Scale photos down by pixels or percentage with a sharp Lanczos filter, then compress them in the same step. Proportions are kept, and nothing leaves your device.
Common sizes
Platforms change their recommendations, so treat these as starting points and check the platform’s help pages if a crop matters.
| Use | Pixels |
|---|---|
| Instagram feed (portrait) | 1080 × 1350 |
| Facebook/LinkedIn link image | 1200 × 630 |
| Full-width blog hero (2× screens) | 2000–2400 wide |
| Shopify / Etsy product photo | 2000 × 2000 (square) |
| Email newsletter image | 1200 wide (shown at 600) |
| YouTube thumbnail | 1280 × 720 |
This tool only scales down and keeps proportions; for exact crops like 1080 × 1350, crop in your photo app first, then resize and compress here.
Questions
Does resizing reduce file size?
Yes, usually more than anything else. File size roughly follows pixel count, and pixel count follows the square of the width, so halving the width leaves about a quarter of the pixels.
Will the aspect ratio be kept?
Yes. Max width and max height are limits: the image is scaled down to fit inside both while keeping its proportions. Images are never stretched or enlarged.
What resampling does it use?
Lanczos3 in linear light with premultiplied alpha, the same high-quality filter used by Squoosh. It avoids the dark halos and jaggies of simple canvas scaling.
What size should website images be?
Match the largest size the image is displayed at, times the screen’s pixel density. A 800 px-wide content column on a 2× phone or laptop needs a 1,600 px image; wider than that wastes bytes.