Image Resizer
Resize an image to exact pixel dimensions or by percentage, with an option to keep the aspect ratio.
About this tool
Whether you're prepping a photo for a website, an upload form with pixel limits, or just want a smaller file to send, this resizer changes an image's width and height directly. Lock the aspect ratio to avoid stretching, or unlock it if you need an exact non-proportional size.
How to use it
- Choose an image — its current width and height fill in automatically.
- Enter a new width or height. With aspect ratio locked, the other dimension updates automatically.
- Click Resize, then Download the result.
Tips
- Enlarging a small image past its original size will make it blurry — resizing works best when shrinking, not stretching a low-resolution photo.
- Keep aspect ratio locked unless you specifically need to force a non-standard shape.
FAQ
What format is the output?
The resized image downloads as a PNG.
Can I resize by percentage instead of pixels?
Enter the calculated pixel value — for example, 50% of a 2000px-wide image is 1000px.