Image Tools
Image Resizer
Resize images to exact dimensions in your browser.
FreeNo sign-upWorks in your browser
About the Image Resizer
Resize any image free to exact pixel dimensions — profile pictures, YouTube thumbnails (1280×720), Instagram posts (1080×1080), banners, or form uploads with strict size rules. Lock the aspect ratio to scale proportionally, or unlock it for exact width and height. Resizing runs entirely in your browser: no upload, no watermark, no account.
How to use the Image Resizer
- 1Upload or drop an image.
- 2Enter the target width or height (lock the ratio to keep proportions).
- 3Download the resized image.
Frequently asked questions
Does resizing keep the aspect ratio?
Yes — keep the lock enabled and the other dimension updates automatically. Unlock it to set width and height independently.
Can I enlarge a small image?
You can, but upscaling can't add detail that isn't there, so enlarged images may look soft.
What size should a profile picture be?
400×400 px works almost everywhere (Instagram, X, LinkedIn). Upload square at 400–800 px and platforms scale it cleanly.