Change an image's width and height — no sign-up, no upload, no file size limit.
Drop an image here, or click to browse
Your files never leave your device. Everything runs locally in your browser — nothing is uploaded to a server, so there's no file size limit, no subscription, and no one but you ever sees what's in your file.
Upload an image, set a new width and/or height (optionally locked to the original aspect ratio), and the tool redraws it at the new size using your browser's own image scaling — downloaded straight to your device in the same format you uploaded.
When it's checked, changing the width automatically recalculates the height (and vice versa) to keep the image's original proportions, so it doesn't come out stretched or squashed. Uncheck it if you specifically want a different aspect ratio.
Yes, but enlarging a raster image can't add detail that wasn't there — it will look softer or blurrier the more you scale it up, especially past 2x the original size.
The same format as the image you uploaded — a JPG stays a JPG, a PNG stays a PNG, and so on.
No. This tool runs entirely in your browser using JavaScript — your image is read, resized, and downloaded without ever being sent to a server.
Keep a backup of your original file. This tool processes everything locally in your browser, and we've tested it carefully — but no conversion tool handles every PDF perfectly. Always keep your original file and double-check important results before relying on them.