Liner is an AI-driven search and research tool designed to streamline how students, researchers, and professionals access and process information. Unlike traditional search engines, Liner delivers precise, trustworthy answers backed by verifiable academic sources, cutting through the clutter of the internet. Its intuitive interface combines powerful AI capabilities with practical tools like highlighting, summarizing, and organizing content, making it an essential companion for anyone tackling complex research or seeking to boost productivity. Whether you're summarizing lengthy papers, analyzing YouTube videos, or managing a flood of web content, Liner empowers you to work smarter, not harder. Trusted by over 10 million users worldwide, Liner transforms the way you engage with knowledge, saving hours and ensuring credibility.

• AI-powered search with citations: Get accurate answers with line-by-line references to peer-reviewed papers and trusted sources.
• Content summarization: Instantly generate concise summaries of articles, PDFs, and YouTube videos with key takeaways.
• Highlighting and organization: Mark important text or video moments and organize them into folders for easy access.
• Cross-platform sync: Seamlessly access your data across web, iOS, Android, and Chrome extensions.
• Advanced AI model access: Liner Pro users can leverage top models like ChatGPT-4o, Claude, and Gemini for deeper insights.
• File and image processing: Upload PDFs, PPTs, or images for analysis, summarization, or translation.
• Copilot integration: Interact with documents or Google searches via Liner’s AI Copilot for real-time assistance.

• Saves time: Reduces research time from hours to minutes with AI-driven summaries and precise answers.
• Enhances credibility: Every answer is backed by citable sources, ensuring trust and accuracy.
• Boosts productivity: Organizes highlights and insights in one place, streamlining workflows for students and professionals.
• User-friendly: Intuitive design and cross-device sync make it accessible for all skill levels.
• Versatile applications: Supports a wide range of content types, from academic papers to YouTube videos.

• Learning curve for new interface: Recent updates have added complexity, with some users finding the browser-like interface cluttered.
• Highlight browsing issues: Navigating highlights can be cumbersome, as the app may reset to the top of the list.
• Subscription concerns: Some users report difficulties with cancellation and high annual charges if the free trial is not cancelled.
• Limited free plan: Advanced features like file uploads and top AI models require a paid Liner Pro subscription.

• Students: Simplify assignments by summarizing complex papers, generating citations, and organizing research notes efficiently.
• Researchers: Access reliable, source-backed data quickly, with tools to analyze and summarize academic content.
• Content creators: Use AI to brainstorm ideas, summarize web content, and highlight key points for faster content development.
• Professionals: Automate time-consuming tasks like document analysis and research, improving efficiency across industries.
• Educators: Streamline lesson planning by summarizing resources and organizing insights for teaching materials.