Resize, compress and convert photos
Pick a tool or search. Made for form uploads: exact KB, passport and signature sizes.
Ad space (paste AdSense code here)
Change aspect ratio
Change aspect ratio: Crop the centre to a ratio like 4:3. Free, no signup, works in your browser.
You can select many files at once.
Ad space
More tools
About Change aspect ratio
Crop the centre to a ratio like 4:3. Choose your file, adjust the options if any are shown and press the button.
The work is done in your browser, so it is fast and your files stay on your device.
How to use
- Click Choose and select your file.
- Adjust the options if any are shown.
- Press Start and wait a moment.
- Download the result.
Frequently asked questions
What does Change aspect ratio do?
Crop the centre to a ratio like 4:3.
Is this tool free? Do I need to sign up?
Yes. It is completely free and you do not need to create an account.
Is my photo uploaded to a server?
No. The work is done inside your own browser on your phone or computer. Your files are not sent to PixKB.org.