A clipping mask in text design is a technique used in graphic design software like Adobe Photoshop and Illustrator to create visually striking text effects. It allows an image, texture, or pattern to be revealed only within the shape of the text, making the text appear as though it is filled with the image. This is achieved by placing the image above the text layer and using the text as a mask, ensuring that only the parts of the image within the text’s boundaries are visible. Clipping masks are widely used for creative typography, branding, and digital art, adding depth and uniqueness to designs.