LINER is an AI workspace designed to assist users in finding and absorbing reliable information quickly. With the help of millions of intelligent people around the world, LINER filters and highlights the key points of web content. This tool offers a browser extension and PDF highlighter tool, allowing users to annotate and highlight web pages and PDF files.Key features of LINER include web highlighting and annotation, PDF highlighting and annotation, a browser extension, cross-device and platform availability, the ability to save and share highlights, and the option to filter highlights by intelligent users.Use cases for LINER include research and information gathering, academic studying and note-taking, professional document markup and analysis, and collaborative highlighting and knowledge sharing.To utilize LINER, users can simply install the browser extension or utilize the PDF highlighter tool. With the browser extension, users can highlight and save important information while browsing the web. The PDF highlighter tool allows users to highlight and annotate PDF files online. Users also have the ability to comment on and share their highlights with others. LINER is accessible on all devices and platforms.