Image Resizer
Resize images to exact pixel dimensions with optional aspect ratio lock.
Upload an image
How to use
- 1
Upload your image
Choose any JPG, PNG, or WebP image. The current dimensions are displayed automatically.
- 2
Set new dimensions
Enter the desired width and height in pixels. Toggle aspect ratio lock to keep proportions when changing one dimension.
- 3
Download the resized image
Click Download to save the resized version. The output keeps the same format as your original file.
Frequently Asked Questions
Yes. Enable the aspect ratio lock to automatically calculate the matching dimension when you change width or height.
There is no fixed limit, but very large images (above 8000px) may be slow to process depending on your device and browser.
Shrinking an image generally looks sharp. Enlarging beyond the original size may appear blurry because new pixels are interpolated.
Completely free with no signup. All resizing happens locally — your images are never uploaded.