A link shortener is a tool that takes a long URL and converts it into a shorter, more manageable link. This shortened URL redirects users to the original destination when clicked, making it easier to share and remember. Link shorteners are commonly used in social media posts, emails, and other digital communications where space is limited or aesthetics are important. They often include tracking features, allowing users to monitor the performance of their links, such as the number of clicks or the geographic location of visitors.