Butn.one is a website that provides a button generator for Notion users, also known as "Call to Action" buttons. These web elements are designed to guide users towards a specific action, such as subscribing, purchasing, downloading, etc. On this website, you can customize the button's name, link URL, color, font, border, shadow, alignment, and even add EMOJI symbols. It generates a code that can be embedded into a Notion page. One of the coolest features is that the button you design can be shared with others, making it suitable for use as a reference in website design.