To make your website look more professional, there are a few things you can do using your selected site builder. For example, you can start by choosing a well-designed, minimalistic template. Next, pick the right color palette and use white space generously. Lastly, upload high-resolution photos and images. Website builders like Wix and Squarespace are perfect for creating an elegant-looking site. Their professionally designed templates make it easy to choose the right colors for your website, even if you're not familiar with the basics of color theory. Plus, most themes leave plenty of white space around key design elements (such as headings, photos, buttons, and text), giving your website a sleek, uncluttered look.