A URL shortener is a tool that converts long and complex website addresses into shorter and more manageable links. These shortened URLs typically consist of a combination of letters and numbers and are used to redirect users to the original, longer URL. This allows for easier sharing of links on social media platforms, messaging apps, and other online platforms where character limits are a concern. URL shorteners also provide analytics and tracking capabilities, allowing users to monitor the performance of their links and track the number of clicks and engagement. They are commonly used by businesses, marketers, and individuals to make their online presence more efficient and user-friendly.