Which tool in Pixlr enables you to create selections in a square or circular shape?

The Marquee Select tool is specifically designed for creating selections in geometric shapes such as squares or circles. This tool allows users to click and drag to form a rectangular selection, or by holding down a specific key (often the Shift key) while dragging, it can create a perfect square or circle. This capability makes it ideal for tasks that require precise, uniform selections, such as isolating objects or areas of an image for editing. The ease of use and the straightforward function make it a key feature in image editing software like Pixlr.

In contrast, the other tools mentioned do not serve this purpose. The Brush tool is primarily used for painting or drawing within the canvas. The Lasso tool allows for freeform selections but does not inherently limit you to geometric shapes. The Wand tool, on the other hand, selects areas based on color similarity rather than shape. Thus, the Marquee Select tool stands out as the most appropriate choice for creating selections in defined square or circular formats.