About the Image Cropper
Crop Pictures Online with Precise Dimensions — Crop a JPG, PNG or WebP picture directly in your browser by dragging a selection or specifying pixel coordinates and dimensions.
Formula or method
A selected rectangle defines the image area. The browser draws that portion to a new canvas and exports it as JPG or PNG.
Worked example
Crop a 1920 × 1080 screenshot to a 1080 × 1080 square by selecting the center region.
How to use the tool
- Upload a supported image and select the region you want to keep.
- Adjust the crop rectangle and preview the selected area.
- Export the cropped image and check its dimensions and intended composition.
Common uses
Social images, thumbnails, photos, screenshots.
When this tool is useful
Crop unwanted edges or focus attention on the important part of a picture.
What to check before relying on the result
Cropping removes pixels outside the region. Keep the original if you may need to revise the crop.
Assumptions and limitations
Cropping permanently removes pixels outside the selection in the new file; it does not upscale or enhance the source. PNG transparency is flattened when choosing JPG.
Frequently asked questions
Can I crop an image to 16:9 for YouTube?
Yes. Select the Landscape 16:9 preset, draw the desired region and export the result.
Does cropping make an image the right upload dimensions?
Cropping changes which pixels are kept. Use Image Resizer afterward when exact width and height are required.
Continue with a related workflow
Privacy and support
Your inputs are processed locally in your browser. ToolMosaic does not upload or store the values you enter in this tool. Our tools are free, and we appreciate your support.