Image Resizer

Every photo coming off a phone is bigger than it needs to be. That is fine for printing, but overkill for a blog thumbnail, a job application, or a social post. This image resizer does one job — it changes the dimensions of a picture to whatever you actually need. Upload the file, set a new width and height, download the result. No software to install and no account to create.

Most people need an image resizer online for one of two reasons. Either a layout calls for exact pixel dimensions (a 1080×1080 Instagram post, a 1600×400 banner), or a form caps uploads at a specific file size (50 KB, 100 KB, 200 KB). This tool handles both. The pixel image resizer mode takes a width and height; the image resizer in KB mode takes a target file size and gets you as close to it as the content allows.

Leave aspect ratio on for most photos — it keeps the picture from stretching. Turn it off only when a platform demands an exact size in both directions. If the result looks soft after a heavy shrink, the original was probably low resolution to begin with; there is only so much you can do with a 300-pixel source. For passport and ID photos, the image resizer in KB mode is usually the one you want.

After the resize, you might want to trim the file further with our Image Compressor, swap the format using JPG to PNG or PNG to JPG, or clean up the backdrop with our Background Remover. Same free image resizer workflow, just different last steps.