- Standard is a rectangle you drag and resize. Ratio buttons lock it to Free, the original shape, 1:1, 4:5, 16:9 or 4:3.
- Circle uses the same box but keeps only the ellipse inside it. With a square box that is a circle, which suits profile pictures. Everything outside becomes transparent.
- Lasso lets you click points around an irregular shape. Close it by clicking near the first point. The result is the bounding rectangle of the shape, with everything outside your outline transparent. Undo and clear buttons help fix a misplaced point.
Three crop modes
Output size
By default the output keeps the pixel size of the area you selected, so cropping never enlarges anything by itself. The width and height fields update as you move the box. You can type different numbers to export the crop at a fixed size, for example 400 x 400 for an avatar. The area is then resampled with a Lanczos filter and a light sharpening pass.
Typing a size larger than the selected area enlarges it, which softens the image. A crop is easier to judge if you remember that cropping removes pixels: a small selection from a small photo will never look sharp at a large size.
Format matters for circle and lasso crops
PNG is the default output because it is lossless and keeps transparency. WebP also keeps transparency and is smaller. JPG cannot store transparency, so the transparent corners of a circle or the area outside a lasso turn black. Some sites mask profile pictures into a circle themselves; for those, a square standard crop saved as JPG is fine.
Choosing a ratio
| Ratio | Typical use |
|---|---|
| 1:1 | Profile pictures, square feed posts, product thumbnails |
| 4:5 | Portrait posts on feeds that allow taller images |
| 16:9 | Video thumbnails, widescreen headers, slides |
| 4:3 | Many compact camera photos and older displays |
To check the ratio of an existing image, use the Aspect Ratio Calculator.
Troubleshooting
- "Please close your Lasso selection first": click on or near the first point to close the shape before exporting.
- Black corners on a circle crop: switch the format to PNG or WebP.
- The crop looks blurry: the output size is larger than the selected area. Use the size shown by default or a smaller one.
Where the processing happens
Cropping, masking and resampling all happen in your browser. The photo is not uploaded. As with other canvas-based tools, EXIF data and colour profiles are not kept in the output.
Questions about this tool
Can I crop several images at once?
No, each crop is drawn by hand on one image. For batches that only need a size change, use the Bulk Image Resizer.
How do I make a round profile picture?
Choose Circle mode and the 1:1 ratio, place the box over the face and save as PNG. Everything outside the circle becomes transparent. If you save as JPG, the corners turn black.
How do I cut out an odd shape, not a rectangle?
Use Lasso mode. Click points around the shape and close it by clicking near the first point. Everything outside your outline becomes transparent. Save as PNG or WebP to keep that.
I need the crop to be exactly 1080 x 1080 pixels. Can I do that?
Yes. Pick the 1:1 ratio, place the box, then type 1080 in the width and height fields before saving. If the area you selected is smaller than that, the result will be enlarged and look a little softer.
My cropped picture looks blurry. Why?
The output size is bigger than the area you selected, so the picture was enlarged. Use the size the tool shows by default, or select a larger area of the photo.
It says "Please close your Lasso selection first". What does that mean?
Your lasso outline is still open. Click on or near the first point you placed to close the shape, then save.