Cropping is the one edit that costs nothing
Almost every image operation trades something away. Compression discards detail, resizing interpolates pixels that were never there, format conversion re-encodes. Cropping does none of that: it keeps the pixels inside the frame exactly as the camera recorded them and throws the rest away. The only quality change comes from re-encoding the result, and you can avoid even that by exporting to PNG.
That makes cropping the right first move whenever an image is nearly right. If the subject is too small in the frame, crop rather than zoom. If a photo needs to be square for a profile picture, crop rather than squash. Stretching an image to fit a shape distorts faces; cropping to that shape does not.
The ratio presets and what they are for
| Ratio | Shape | Where it is used |
|---|---|---|
| 1:1 | Square | Profile pictures, avatars, product listings, album art |
| 4:3 | Slightly wide | Older cameras, tablets, many presentation templates |
| 3:2 | Classic photo | DSLR and mirrorless output, 6×4 inch prints |
| 16:9 | Widescreen | Video thumbnails, banners, slides, monitors |
| 9:16 | Vertical | Phone wallpapers, stories, short-form video covers |
| Free | Anything | Trimming edges, removing an unwanted object |
Lock a ratio and the frame keeps that shape however you drag it, which matters more than it sounds. Uploading a nearly-square image to a system that wants a square means the system crops it for you, usually from the centre and usually badly. Deciding the crop yourself is the difference between a portrait that is framed and one that has had its chin cut off.
Exact pixel dimensions
The X, Y, width and height boxes hold real image coordinates, not screen positions, so what you type is what you get regardless of how large the preview happens to be on your display. X and Y measure from the top-left corner of the original.
There are two different jobs hiding in the phrase “crop to 1080 × 1080”, and the Output size control separates them:
- Original cuts pixels away and keeps them at their native scale. A 1080 × 1080 selection produces a 1080 × 1080 file. If your selection is only 700 px wide, you get 700 px.
- Scale to exact width crops first and then resizes the result to the width you name. Use it when a system demands specific dimensions and your selection does not happen to match them. Be aware that scaling up a small selection cannot add detail — it only makes the softness larger.
Composition, briefly
The two lines drawn across the frame divide it into thirds. The old guidance is to place your subject where those lines cross rather than dead centre, and while it is a convention rather than a law, it is a reliable starting point when a photo feels static.
Two more practical habits. Leave a little space in the direction a person is facing or moving — a portrait cropped tight against the nose feels cramped. And avoid cutting through joints: a crop that lands at the wrist, elbow or knee looks like an accident, while one just above or below reads as deliberate.
One image at a time, on purpose
This tool crops a single image rather than a batch, and that is a deliberate choice. A crop frame is a specific rectangle on a specific photograph. Applying the same rectangle across differently sized images cuts off different things in each one, which is exactly the kind of silent damage you discover after you have deleted the originals. When you need to process many files, resizing is the batch operation that actually makes sense.
If your photo is crooked as well as badly framed, straighten it first with the rotate tool and crop afterwards — rotating by a free angle leaves empty triangles in the corners, and a crop is how you remove them.
The whole process runs in your browser. The image is decoded, displayed and cropped on your own device, so nothing is uploaded, there is no file size ceiling and no queue to wait in.