Resize an image

Resize changes the pixel grid. It often makes a smaller file, but a kilobyte cap is a different job: compress the image, or use a specific cap such as 200 KB. A file the next app cannot open should be converted — HEIC to JPG and WebP to JPG are the common ones. Discord’s byte limit is compress for Discord, not a banner size.

A resize changes how many pixels wide and tall the picture is. A 4000×3000 photo becomes 1200×900, and the file usually gets smaller because there is less to store. That is a side effect. If a form said “under 200 KB,” the compressor is the tool that hunts that number. This page will not promise a file size.

It also does not write a DPI or PPI tag. “300 DPI” on a print form is almost always a request for pixel dimensions: 6 inches times 300 is 1800 pixels on that side. Ask for the pixels, or multiply inches by the density they named, and type those numbers here. A metadata field that says 300 DPI on a tiny image does not make a sharp print, and this tool does not pretend to set one.

The lock is on because stretching a face is rarely what anyone wanted. Change the width and the height follows the first image, so you can see the pair. In a batch, each photo uses the edge you edited and its own aspect, so a portrait and a landscape can share a long edge without becoming the same rectangle. Turn the lock off only when you truly want every file forced to the same width and height.

Typing a size larger than the original does not recover detail. It paints the same pixels across more space, and the result looks softer. Downscaling is the useful direction: fewer pixels, with a high-quality resample, for an avatar, a form, or a page that displayed a huge camera original at the size of a thumb.

Social presets — an Instagram post, a YouTube thumbnail, a passport crop — are not built into this version. If a site gave you a pixel size, type it. Guessing a preset and calling it official would be worse than a plain width and height.

JPG is the default because most resized photos are going somewhere that wants a photograph. PNG keeps transparency and will not add another lossy step, at the cost of size. WebP is the smaller option when the destination is a modern browser or a site you control. HEIC and AVIF inputs are decoded first; this page does not write them back out. A GIF contributes one frame. Orientation is applied so a phone photo is upright. Other EXIF, including GPS, is not copied.