Image resizer
Change image width and height
How it works
Resize JPG, PNG or WebP images locally. Keep the aspect ratio to derive height from width. Maximum image size is 40 megapixels and 50 MB per file.
Example
A 1600×1200 image resized to width 800 with aspect ratio enabled becomes 800×600.
How to use
- Enter your values or choose a local file.
- Choose settings and run the tool.
- Review the result, then copy it or download the file.
Common questions
What rules does this tool use?
Resize JPG, PNG or WebP images locally. Keep the aspect ratio to derive height from width. Maximum image size is 40 megapixels and 50 MB per file.
Are my inputs uploaded?
Calculations, texts and files are processed in this browser. The currency tool requests only currency codes from our server.
Free tool · Inputs processed locally · Updated October 5, 2026