Resize Image

Usually yes — fewer pixels means less data, so a smaller resolution almost always produces a smaller file. If you specifically want the smallest file at the same dimensions, use the image compressor instead, which trades quality for size.

Shrinking looks clean because detail is averaged down. Enlarging is where quality suffers: the browser can only stretch the pixels it has, so blowing an image up well beyond its native size looks soft or blocky. Resize down freely; resize up only within reason.

It keeps width and height in the same proportion as the original. Type one dimension and the other is calculated for you, so circles stay round and people don’t look stretched. Turn it off only when you need to hit an exact box regardless of proportions.

You can set dimensions larger than the original, but no tool adds detail that was never captured. The result will look softer the more you enlarge it. For print or large displays, always start from the highest-resolution source you have.

JPG, PNG and WebP. The output keeps the input format — a transparent PNG stays a transparent PNG. JPGs have no transparency, so any transparent areas are filled with white.

No. The resize runs entirely in your browser using the Canvas API. After the page has loaded you can even work offline, and no image data leaves your device.

Very large images are limited only by your device’s memory. Extremely high resolutions (tens of megapixels) may be slow on older phones, but typical photos and screenshots resize instantly.

This tool works in pixels, which is what matters for screens. DPI is just a tag describing how those pixels map to physical inches when printed; changing pixel dimensions is what actually changes how large or detailed a print can be.

Yes. Redrawing through the canvas discards embedded EXIF data such as GPS location and camera model — often a welcome privacy side effect before sharing a photo.

This tool handles one image at a time so you can set precise dimensions for each. For batch work at a single quality, the image compressor processes many files together.