Additional options: Adjust the aspect ratio to crop to a specific height and width ratio (e.g., a perfect square). You can move the crop area around before committing to a crop.
Drag to reframe and hit Return - you’ve just cropped your image. Reframe your entire canvas to a desired size and remove everything else. The toolbar in Pixlr Editor always appears on the left-hand side, although you can drag it anywhere you like.