Three simple steps
How to resize an image online
- 01
Choose a JPG, PNG or WebP image from your device.
- 02
Enter the width and height you need, keep the aspect ratio locked if desired, or use a common size preset.
- 03
Resize the image in your browser, preview the result and download it.
What does resizing an image change?
Resizing changes the pixel dimensions of an image, such as from 4000×3000 pixels to 1920×1080 pixels. Smaller dimensions usually reduce file size and can make images faster to upload or share.
Why lock the aspect ratio?
Locking the aspect ratio keeps the original proportions of the image. When you change the width, ToolYogi automatically calculates the matching height, helping prevent stretched or squashed images.
Which image size should I use?
The right dimensions depend on where the image will be used. Square 1080×1080 works well for many social posts, 1080×1920 is common for vertical stories and shorts, and 1920×1080 is a common 16:9 HD size.
A little more clarity
Frequently asked questions
Is the Image Resizer free?
Yes. You can resize supported images without creating an account.
Does ToolYogi upload my image?
No. The current Image Resizer processes the selected image locally in your browser.
Can I enter custom width and height?
Yes. You can enter exact pixel dimensions up to 12000 pixels per side.
Can I keep the original proportions?
Yes. Keep Lock aspect ratio enabled and changing one dimension will automatically update the other.
Can I change the image format while resizing?
Yes. You can keep the original format or export as JPG, PNG or WebP.