Image Resizer
Upload an image, set new dimensions or a percentage, and download the resized file.
Drop an image here, or click to choose
Keeping the aspect ratio
With the lock enabled, changing width automatically recalculates height (and vice versa) so the image doesn't stretch or squash. Turn it off to set width and height independently.
About the Image Resizer
The Image Resizer changes the pixel dimensions of a picture to exact width and height or by percentage, with the option to lock the aspect ratio. It is useful for preparing photos for websites, email, social media, forms and printing.
Aspect ratio is the relationship between width and height. Locking it means that when you change one value the other is updated so the picture is not stretched. Reducing size is generally safe; enlarging a small picture makes it blurry because software has to invent the missing pixels.
How to use it
- Upload an image.
- Enter a new width or height, or use the percentage option.
- Keep Lock aspect ratio on to avoid distortion.
- Press Download resized image.
Tips and good to know
- Resize from the largest original you have.
- For a target file size in KB, use the Image Compressor.
- Aim for twice the display size for sharp images on high-density screens.
Frequently asked questions
Why does my enlarged image look blurry?
Upscaling cannot add detail.
What size is best for email?
Around 1200 pixels on the long edge is usually enough for screens.
Will it change the file type?
It keeps the type.