How to Resize Images Online
Free, step-by-step guide. No signup needed — everything runs in your browser.
1
Open the Image Resizer
Go to the tool page. Ready to use instantly.
2
Upload your image
Drop your image or click to select. Supports JPG, PNG, and WebP.
3
Set dimensions
Enter your desired width and height. Lock aspect ratio to prevent distortion, or unlock for custom proportions.
4
Download resized image
Save your resized image in your preferred format.
Tips for best results
- Always resize down, not up. Enlarging images reduces quality.
- Lock the aspect ratio to prevent stretching or squishing.
- Common social media sizes: Instagram (1080x1080), Twitter (1600x900), Facebook (1200x630).
- For retina displays, export at 2x your target display size.
Try Image Resizer now
Resize images to exact dimensions. Free, no signup, 100% private.
Open Image Resizer