Aspect Ratio Cropper
Crop images to precise aspect ratios used by popular platforms and formats. Choose from preset ratios (16:9, 4:3, 3:2, 1:1, 9:16, 21:9) or enter a custom ratio. The interactive crop tool lets you position and resize the crop window before finalizing. Perfect for preparing images for YouTube thumbnails, TV displays, print photos, social media, and any use case with strict aspect ratio requirements.
Aspect Ratio Cropper
Crop images to any aspect ratio — 16:9, 4:3, 1:1, and more.
Upload Image
or drag and drop
How to Use Aspect Ratio Cropper
- 1Upload your image
- 2Select a preset aspect ratio or enter a custom one
- 3Drag to position the crop area on your image
- 4Click "Crop" and download the result
Your Privacy is Protected
Aspect Ratio Cropper runs entirely in your browser. Your files and data are never uploaded to any server, never stored, and never shared. Everything happens locally on your device using secure browser APIs.
Frequently Asked Questions
What aspect ratios are available?
Presets include 1:1 (square), 16:9 (widescreen), 4:3 (standard), 3:2 (photo), 9:16 (portrait/story), and 21:9 (ultrawide). You can also enter any custom ratio.
What is the best aspect ratio for YouTube thumbnails?
16:9 is the standard YouTube thumbnail ratio, at 1280×720px minimum (1920×1080px recommended).