Smoothing tools are software features or applications used to reduce noise and irregularities in data or images. They help create a cleaner and more visually appealing result by averaging out fluctuations. Commonly used in fields like photography and data analysis, these tools can enhance the quality of images or make trends in data more apparent. In image editing, smoothing tools can blur sharp edges or remove unwanted details, making the image look softer. In data analysis, they can help identify underlying patterns by filtering out random variations. Popular examples include Photoshop for images and Excel for data sets.