Crop to Aspect Ratio
Crop image to any locked aspect ratio. Maintain proportions like 16:9, 4:3, or 1:1.
- Free to use
- Browser-based processing
- No account required
- Files never uploaded
About Crop to Aspect Ratio
Crop to Aspect Ratio locks your crop box to a fixed proportion — 1:1 for square, 16:9 for video thumbnails, 4:3, 3:2, or a custom ratio you enter — so the result always matches the format you need. The selection stays proportional as you move it, and the crop runs locally in your browser.
How to Use Crop to Aspect Ratio
- 1
Upload an image
Add the photo you want to crop.
- 2
Pick an aspect ratio
Choose a preset like 16:9, 4:3, 1:1 or 3:2, or enter a custom ratio. The crop box locks to that shape.
- 3
Position and download
Move the locked box over the part you want and save the cropped result.
Frequently Asked Questions
Which aspect ratios are available?
Presets include 1:1, 4:3, 3:2 and 16:9, and you can type any custom ratio you need for a specific platform or print size.
Why crop to a fixed ratio?
Platforms like Instagram, YouTube and print sizes expect specific proportions. Cropping to the right ratio avoids automatic cropping or letterboxing later.
Can the box go outside the image?
No. The locked box stays within the image bounds, so you always get a clean crop at the chosen proportion.
Are files uploaded?
No. Cropping happens entirely in your browser.