- Private: files never leave your device
- Free, no sign-up
- Fast, works offline once loaded
How to use Aspect Ratio Changer
- Drop your images into the box.
- Choose the new ratio and how to fit: add a blurred or colored background, crop to fill, or stretch.
- Download the new images.
About this tool
Need a landscape photo to fit a square or a vertical story without cutting off anything important? The aspect ratio changer adds a blurred copy, a solid color or transparent space around your image, or crops it to fill the new shape.
It works in bulk and supports custom ratios. Use it to prepare pictures for Instagram, YouTube, presentations and print. Processing is local and private.
Frequently asked questions
How do I change the aspect ratio of a photo?
Choose the target ratio, pick "Add background" to keep the whole image or "Crop" to fill the frame, and download.
How do I convert a picture to 16:9?
Select 16:9 and choose Add background (to avoid cropping) or Crop to fill.
Will my image be stretched?
Only if you choose Stretch. The other modes keep the original proportions.
Is Aspect Ratio Changer really free?
Yes. You can use Aspect Ratio Changer as often as you like with no sign-up, no watermark and no daily limit.
Are my images uploaded to a server?
No. Aspect Ratio Changer runs entirely in your web browser, so your files stay on your own device and are never sent to DEWANARO or anyone else.