If you are looking for a theme to give your charity or non-profit website a clean and modern look then give GivingPress Lite a chance. This free theme will help you build a site that is lightweight and minimal allowing you to emphasize your content. It also manages to be feature-rich at the same time, however. With Google Fonts, Custom Background, Custom Header, Slideshow Template, etc, you can personalize your site to best compliment your cause. On top of that, this theme is also translation ready, responsive, and even retina optimized.