Image Resizer
Resize images online by width, height or percentage, with optional aspect-ratio lock. Free, fast and private — resizing happens in your browser with no upload.
Resize images online
Change an image's dimensions by exact pixels or by percentage, with optional aspect-ratio locking so it never looks stretched. Everything runs in your browser — drop in an image, set the size, preview, and download. Great for thumbnails, avatars and upload size limits.
Frequently asked questions
Will resizing keep the aspect ratio?
Yes, as long as 'Lock aspect ratio' is checked — editing the width updates the height (and vice-versa) so the image isn't stretched. Uncheck it to set exact dimensions.
Are images uploaded anywhere?
No. Resizing is done locally with the HTML canvas, so your images stay on your device and nothing is sent to a server.
Can I make an image larger?
Yes, but enlarging beyond the original size can look soft, since the browser has to invent pixels. Downscaling generally keeps quality best.