Liner review 2026 - features, pricing & deals

Liner works for anyone who needs to find, organize, and analyze information across the web and files. The AI-powered search and highlighting tools save hours of research time.

• Students and academics who collect and organize research from multiple sources, highlight key passages, and create study materials
• Researchers who need powerful search across complex topics and must process information from multiple file formats
• Content creators and writers who gather information from websites and organize findings with tags and annotations
• Business professionals who extract insights from documents, presentations, and web resources while collaborating with team members
• Legal and medical professionals who analyze large documents, highlight critical information, and share findings with colleagues
• Engineers and developers who use the code generation features and organize technical documentation

Common use cases include educational institutions, research organizations, content creation teams, and corporate environments where information management matters.

Liner has over 13 million users and gets praise for its easy-to-use interface, particularly for summarizing long articles and news. Users appreciate the clean design, fast performance, and highlighting and note-taking features. The offline reading mode works well, and many find it saves time when dealing with lengthy content.

The free version shows intrusive ads. Premium features are locked behind the paywall. Sync issues across devices pop up. The tool struggles with some complex PDFs. Some users want more customization options.

• AI-Powered Search Engine: Choose from multiple AI models including GPT-4o and Claude 3 to get research results across complex queries, with answers generated from references and recommendations for what to search next.
• Smart Content Highlighting: Mark and tag information from web pages, YouTube videos, and images with customizable colors and themes.
• Multi-Format File Processing: Analyze PDF, PPT, and DOCX files with the PDF Assistant and AI Summarizer, extracting key information and generating summaries to condense lengthy documents.
• Image Text Extraction: Extract text and information directly from images with the Image Reader feature.
• Multi-Device Accessibility: Access your research across browser extensions for Chrome, Safari, Opera, Edge, and Whale, plus iOS and Android mobile apps, with content export to tools like Evernote.
• Team Collaboration Tools: Share highlights, annotations, and research findings with colleagues, with custom team pricing for organizations.
• AI Writing and Coding Help: Get help with email drafting, code generation, and writing improvements through the Word Assistant that enhances tone and grammar, plus AI agents tailored to your needs.

• Basic Plan is free with limited features including 1 AI model access, 1 AI agent, 25 Copilot Chat per day, 5 Liner AI on Google per day, 25 PDF Copilot per day, unlimited web/YouTube/image highlights, 6 highlight colors, 8 highlight color themes, and unlimited highlight comments.
• Essential Plan is $19.58 per month with all Basic AI agents, unlimited AI agent calls, unlimited Copilot Chat, unlimited Liner AI on Google, unlimited PDF Copilot, and unlimited highlights with all basic features.
• Professional Plan is $27.08 per month with all AI model access including GPT-4o and Claude 3, all Pro agents, unlimited AI agent calls, 300 AI image generator images per day, unlimited Copilot Chat, unlimited Liner AI on Google, unlimited PDF Copilot, and unlimited highlights.
• Team Plan is available with custom pricing for organizations needing collaboration features.

Liner uses AI models including GPT-4o and Claude 3, along with others from top companies. The free Basic plan gives you access to 1 AI model, while the Professional plan unlocks all AI models. This lets you choose the best AI for your question or topic, which helps you get better, more accurate results. The multiple models mean Liner works for simple questions and complex research.

Yes. Liner works on most devices and browsers. You can use it as a browser extension for Chrome, Safari, Opera, Edge, and Whale, or download the mobile app for iOS and Android. All your highlights, notes, and saved research sync across your devices, so you can start research on your laptop and continue on your phone without missing anything. You can also export your content to productivity tools like Evernote.

The free Basic plan gives you 1 AI model, 25 Copilot Chats per day, 5 Liner AI on Google per day, 25 PDF Copilot per day, and unlimited highlights with 6 colors. The Essential plan at $19.58/month removes those limits with unlimited AI agent calls and chats. The Professional plan at $27.08/month unlocks all AI models including GPT-4o and Claude 3, all Pro agents, and 300 AI image generator images per day. Most serious students and professionals find the upgrade worth it if they do lots of research or writing.

The highlighting tool lets you mark important parts of web pages, YouTube videos, and even images. You can use different colors to organize information by topic or importance, with 6 colors on the free plan and more options on paid plans. After highlighting, you can add notes or comments to remind yourself why that information matters. All your highlights get saved to your account where you can search through them later, organize them with tags, or share them with friends or classmates. It's like having a digital highlighter that saves everything you mark in one place.

Liner helps with writing projects. It finds sources and information faster than regular search engines. You can highlight and save important quotes or facts as you research, which makes organizing your thoughts easier. The AI Summarizer can condense lengthy articles or explain complex topics, and the Word Assistant can improve your writing tone and grammar. Some users use it to help draft emails or outline papers. Just remember that while Liner can find and organize information for you, you'll still need to put everything together in your own words for assignments.