Resize image files by pixels or inches, preserve the aspect ratio, choose JPG, PNG or WebP output, and check distortion before downloading.
Resizing is about fitting a real constraint: a marketplace square, a profile image, a presentation slide, a website card, or a print layout. The number of pixels matters because it determines how much image information is available to the next application. This Image Resizer accepts one or more files, lets you enter a width and height, offers pixels or inches, and can export JPG, PNG, or WebP. The important decision is whether the image must fill an exact rectangle or merely fit inside one without distortion.
Before changing anything, find the requirement of the destination. “1200 × 628 pixels” is different from “at least 1200 pixels wide,” and neither tells you the file-size limit. Record the source dimensions too. Enlarging a small image supplies more pixels but does not create new detail, so it can make text, faces, and sharp edges look soft. Downsizing is generally the more reliable operation.
Most photographs, logos, and screenshots should retain their original aspect ratio. With aspect ratio preservation enabled, entering only a width calculates the matching height, and entering only a height calculates the matching width. If both values are supplied, the result fits within that box rather than being pulled wider or taller. This is the appropriate choice for a landscape product shot that needs to fit a maximum-width listing without changing the shape of the item.
Turning the aspect setting off gives an exact width and height, but it also permits distortion. That can be correct for an abstract background, a deliberately stretched banner, or an image that will be cropped elsewhere. It is usually wrong for portraits, QR codes, diagrams, or brand marks. If a platform requires a different aspect ratio, crop first in an editor or accept empty space around a proportional image instead of squeezing the subject.
Choose pixels for websites, social platforms, apps, and screen-based forms. They consume a fixed grid of pixels, so a request for 800 × 800 means exactly that. The inches option is converted by this tool using 96 pixels per inch, which is a screen-oriented conversion. It is useful for planning a layout, but it does not change the file into a professionally prepared print image with a guaranteed printer DPI.
For a print job, ask the printer what pixel dimensions and resolution it expects at the final physical size. A 2-inch image can be sharp or blurry depending on how many source pixels it carries. Avoid treating an inch field as a magic quality control. The safest check is to inspect the resized file at the intended physical scale or request a proof from the print workflow.
JPG is normally sensible for opaque photos where a smaller file is useful. PNG keeps crisp graphics and transparency but can be heavier. WebP is often effective for a modern website when the target accepts it. Changing format at the same time as resizing can be convenient, but it makes output checking more important because you are changing both the pixel grid and the encoding in one operation.
A transparent source needs a transparent-capable output. Selecting JPG for a transparent PNG or WebP means the clear areas must become a solid background. Likewise, an animated GIF should be treated cautiously: an image resize path is not a promise to preserve animation timing or every frame. For an icon or logo, download one result and open it on the actual background where it will appear before processing a larger batch.
When several images are submitted, the tool can package the resized outputs in a download archive. Use descriptive source filenames so the files remain recognisable after processing, then open a few representative results: one portrait, one landscape, one transparent graphic, and one text-heavy image. Check both dimensions and appearance. A correct filename extension is not evidence that the result meets an upload rule.
Large source files also deserve a sensible workflow. Keep an untouched master, resize a copy for each destination, and do not repeatedly resize the already resized version. Repeated re-encoding can accumulate loss in JPG or WebP files. Uploaded images are handled server-side to produce the download, so do not use this page for confidential material that should not leave your controlled environment.