Image Crop (Aspect Ratio)
Drop an image, pick a target aspect ratio, and get the largest centred crop that fits, ready to download. It exists for the routine case where a picture is the wrong shape for where it is going — square for a profile or a feed post, 4:5 for the tallest frame a feed will accept, 9:16 for stories and short video, 16:9 for a video thumbnail or a header. Cropping is not resizing: the pixels that remain keep their original density, and what changes is how much of the frame you keep. Everything runs through a Canvas in your browser, so the image is never uploaded.
How to use
- Drop or choose an image.
- Pick the target aspect ratio.
- The largest centered crop appears in the preview.
- Click Download to save.
Frequently asked questions
- Why is it always centered?
- Center crop covers the most common need (subject usually near the middle) and keeps the tool one-click. For an off-center crop, use a full image editor — this tool optimizes for speed.
- Is the image uploaded?
- No. Cropping happens locally with Canvas; the image stays on your device.
- Will the file get smaller?
- Usually yes — fewer pixels means a smaller file. The compression format stays the same as the source, so quality is preserved.
- What about EXIF orientation?
- Browsers decode the image with its EXIF rotation applied, so portraits and landscapes are handled correctly before cropping.
- Which ratio should I use where?
- Square (1:1) is the safe default for profile pictures and feed posts. 4:5 is the tallest a typical feed will show without cropping it further, so it wins the most screen height. 9:16 fills a phone screen for stories and short video. 16:9 is the shape of video thumbnails, presentation slides and page headers.
- Does cropping reduce the image quality?
- The pixels you keep are not resampled, so no detail is lost in the crop itself. The output is encoded again, though, so if it is saved in a lossy format there is the usual small generational cost of a re-encode. What definitely drops is the resolution, because the discarded edges take their pixels with them.
- Why is my cropped file not much smaller?
- Because file size follows the pixels that remain, and a centred crop to a nearby ratio often removes only a thin strip. Going from 4:3 to 1:1 discards a quarter of the frame; going from 16:9 to 4:5 discards far more. If the goal is a smaller file rather than a different shape, resizing or compressing is the operation you want.
Guides on this topic
Related tools
Image Padding & Border
Add solid or transparent padding and an optional border around any image. Fit to a target aspect ratio (1:1, 4:5, 16:9…) for Instagram, YouTube, or print — all in your browser.
Aspect Ratio Calculator
Convert between width × height and aspect ratio (16:9, 4:3, 21:9, …) — fit any ratio inside a container.
Image Aspect Ratio Detector
Drop an image and see its pixel dimensions, simplified aspect ratio, decimal ratio, megapixels, orientation, file size, and the closest common preset.
Image Resize
Resize an image to any dimensions and export as PNG, JPEG, or WebP — all in your browser.
Image Round Corners
Apply rounded corners, a full circle mask, or per-corner radii to an image — preview with a checkerboard for transparency, download as PNG or JPEG.
Image Trim (Auto-Crop Transparent / Solid Borders)
Automatically crop empty transparent, white, black, or any solid-color border off an image — with adjustable tolerance, padding control, and PNG/JPEG/WebP export. Everything runs in your browser.