BLUF (Bottom Line Up Front) is a powerful AI-powered browser extension designed to simplify information retrieval from various online sources. By using advanced AI algorithms, it provides users with quick and clear summaries and explanations of web page content, PDF documents, and YouTube videos. The tool is easy to use and helps in getting the most critical information upfront, essentially saving time and increasing productivity for its users. BLUF offers three main functionalities - ASK, SUMMARIZE, and EXPLAIN, making it versatile for different user needs.