Crop an image to 4:3

Crop photos to the classic 4:3 ratio with a live preview and locked proportions. Everything is processed locally in your browser.

Privacy-first: every image is processed locally in your browser. Nothing is uploaded, stored or transmitted to any server.

The native ratio of most cameras

4:3 is what phone sensors and Micro Four Thirds cameras actually capture, and what older displays, iPads and many print formats expect. Cropping stray compositions back to a clean 4:3 keeps albums and slideshows visually consistent instead of a jumble of shapes.

Trim, straighten, export

Beyond the locked 4:3 selection, the tool rotates, flips and straightens by up to 45° — so a tilted scan or horizon gets fixed in the same pass as the crop. Everything happens on your device with a live preview, and the export keeps full source resolution inside the cropped area.

Frequently asked questions

Is my image uploaded to crop it?
No. Cropping, rounding corners, adding borders, rotating and straightening all run locally in your browser.
Can I crop an image into a circle?
Yes. Choose the Circle shape to crop to a circle (or an ellipse on non-square crops). The corners become transparent and the result is exported as a PNG so the circle stays clean on any background.
Can I round the corners or add a border?
Yes. Pick Rounded and set the corner radius, and add a border of any thickness and color. A live preview shows the exact result before you download.
Can I crop to a specific aspect ratio?
Yes. Choose Free, 1:1, 4:5, 4:3, 3:2, 16:9 or 9:16 and the crop selection snaps to that ratio.
What format is the cropped image saved in?
The original format is preserved where possible. Rounded and circle crops export as PNG so their transparent corners are kept (BMP is also saved as PNG).