Cropping is the most effective edit most images need. It removes distraction, fixes a composition that was framed in a hurry, and forces an image into the shape a platform demands. Doing it here means the file never leaves your device.
How to use the Image Cropper
- Drop an image onto the upload area, or click to browse
- Pick an aspect ratio, or leave it on Free to crop to any shape
- Drag on the image to select the area you want to keep
- Fine-tune with the X, Y, width and height fields, then click Crop and download
Aspect ratios worth knowing
Most places that display images crop them to a fixed shape whether you do or not — and their automatic crop is rarely where you would have chosen.
- 1:1 square — profile pictures almost everywhere, and Instagram's classic post shape.
- 16:9 — video thumbnails, presentation slides, hero banners.
- 4:5 portrait — the tallest shape Instagram shows in full. Taller images get cropped in the feed.
- 1.91:1 — the Open Graph ratio for link previews on Facebook, LinkedIn and X. A 1200 × 630 image fits exactly.
Crop to the target ratio yourself and you control what survives. Leave it to the platform and it will centre-crop, which routinely cuts heads off group photos.
Cropping versus resizing
They solve different problems and are often confused.
Cropping discards part of the image. The pixels that remain are untouched at their original resolution, so there is no quality loss in the area you keep — you simply have less of the picture.
Resizing keeps the whole image and scales every pixel. Scaling down is safe; scaling up invents detail that was never captured and looks soft.
The usual order is crop first, then resize. Crop to the composition and ratio you want, then scale the result down to the dimensions you actually need. Doing it the other way wastes resolution you might have kept.
Note that cropping a 4000px photo to a small square still leaves you with a high-resolution square — run it through the Image Resizer afterwards if file size matters.
Frequently asked questions
Is my image uploaded anywhere?
No. The image is read and cropped entirely in your browser using the Canvas API. Nothing is transmitted, so there is no file size limit and no copy on anyone's server.
Does cropping reduce the quality of what is left?
No. The remaining pixels are copied at their original resolution. Only the export format affects quality — choose PNG for lossless, JPEG for a smaller file.
Why does my transparent PNG get a white background?
Only when you export as JPEG, which has no alpha channel. Export as PNG or WebP to keep transparency.
Can I crop to an exact pixel size?
Yes. Type the values into the X, Y, width and height fields. Anything outside the image bounds is clamped automatically and the fields update to show what was actually applied.
What size should a profile picture be?
Square, and at least 400 × 400 so it stays sharp on high-density screens. Most platforms display it as a circle, so keep the subject away from the corners.