Resize Image

Resize image files to any size right in your browser — by exact pixels, a percentage, or a ready-made preset, and crop them too, without uploading a thing. Resizing changes an image’s width and height, and oversized photos are one of the most common causes of slow-loading pages, so getting the dimensions right matters for both speed and how your pictures look wherever you use them. This image resizer keeps the aspect ratio locked by default so nothing stretches, and shows the new dimensions and file size before you download.

The reason to resize image files here rather than on a typical online tool is simple: nothing leaves your device. Everything runs in your browser, so there is no upload, no sign-up, no watermark and no file-count limit. Drop one photo or a whole folder and each is processed locally; batches download together as a single ZIP with the dimensions written into every filename. On a modern laptop a hundred images resize in seconds, and you can even paste a screenshot straight in with Ctrl or Cmd + V.

Three ways to resize, plus a free crop

Choose the mode that fits the job. By dimensions sets an exact width and height; by percentage scales everything to, say, 50%; and preset sizes drop in the right numbers for an Instagram post, an Open Graph share image, a YouTube thumbnail, or Full HD. When an image’s shape does not match the target, pick Fit inside to keep it whole, Fill and crop to fill the frame exactly, or Stretch. And if all you want is to crop, switch to Crop and drag the box and its handles — with a free ratio or a locked one like 1:1 or 16:9 — to keep only the part you want.

Resize an image without losing quality

Every resize is drawn with high-quality smoothing, so shrinking a large photo stays crisp rather than turning soft. You can change format while you resize too — keep the original, or save as JPG, PNG or WebP — and a quality slider appears for the lossy formats. Leave “don’t enlarge” on, as it is by default, so a small image is never blown up past its real size and made blurry; anything already smaller than your target is simply left as it is.

What size should you resize to?

It depends on where the image is going. For a website, resize image files so the longest side is around 1500 to 2000 pixels — large enough to look sharp, small enough to load fast. For email, 1000 to 1200 pixels is usually plenty. Social platforms have fixed sizes, which is exactly what the presets are for. Profile pictures and product thumbnails are often square, so Fill mode or the crop box gets them there without distortion. When in doubt, resize down rather than up: shrinking keeps detail, while enlarging invents pixels and softens the picture.

Getting a file under a size limit

If your goal is a specific file weight rather than specific dimensions — a form that demands under 100 KB, an email attachment, a portal upload — resizing smaller helps, but the tool built to hit an exact KB target is Compress Image, which shrinks a file to a size you set. Resize here first if the dimensions are wrong, then compress to the exact weight you need.

Working with a particular format? PNG to WebP and JPG to WebP make files much smaller for the web, and Image to PDF turns your pictures into a shareable document. To open modern camera and phone formats, the AVIF to JPG converter handles the rest.