Image Resizer

You pick an image from your device and it is drawn onto an HTML <canvas> at the new size you choose. The browser does all the scaling, then hands you a new file to download. Because it uses the canvas, the result is a fresh raster image at exactly the width and height you set.

No. Resizing runs entirely in your browser — your image is never uploaded to a server and nothing is stored. You can even use it offline once the page has loaded, which makes it safe for private or sensitive pictures.

When lock aspect ratio is on (the default), changing the width updates the height automatically — and vice versa — so your image keeps its original proportions and never looks stretched or squashed. Turn it off to set width and height independently.

You can save as PNG (lossless, keeps transparency), JPEG (smaller files, no transparency) or WebP (modern format with excellent compression). Pick the format from the dropdown before downloading; the live preview and file size update to match.

Usually yes. Making an image smaller in pixels means fewer pixels to store, so the file is lighter — useful for faster web pages and email attachments. Choosing JPEG or WebP instead of PNG shrinks it further. The tool shows the new file size so you can compare.

You can enter dimensions bigger than the original, but enlarging a raster image cannot add detail that was not captured, so it may look soft or blocky. For the sharpest results, resize down from a high-resolution source rather than scaling a small image up.