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Glasp

Glasp

Social web highlighter that builds your AI memory

About Glasp

Glasp is a browser extension for Chrome, Safari, Edge, Brave, and Opera that transforms how you capture and organize knowledge from the web. It allows you to highlight text directly on webpages, PDFs, and YouTube videos (with timestamps), then organize these highlights with tags and notes. What sets Glasp apart is its social dimension—you can follow like-minded users and discover their highlights—and its AI clone feature that learns from your curated content to provide personalized insights. The tool integrates seamlessly with popular note-taking apps like Notion, Roam Research, and Obsidian, and can import highlights from Kindle, Pocket, Medium, and other platforms. With over 1 million users, Glasp serves researchers, students, content creators, and lifelong learners who want to build a searchable knowledge base while creating a digital legacy of their learning journey.

Our Review

Glasp excels at solving a fundamental problem: capturing and organizing insights scattered across the web. The highlighting experience is smooth and non-intrusive, working particularly well with YouTube's timestamp feature and PDF documents. The ability to export highlights in multiple formats (Markdown, HTML, CSV, JSON) demonstrates strong interoperability with existing workflows. The social aspect is genuinely unique—discovering what others highlight in articles you're reading can surface new perspectives, though this feature may not appeal to everyone. The AI clone capability is intriguing, positioning your highlights as training data for personalized insights and a digital legacy, though the practical utility of this feature may vary by user. The interface is clean and the knowledge graph helps visualize learning progress. However, the tool requires commitment to build value—casual users may find the social features unnecessary, and the AI clone needs substantial data to become useful. Daily review reminders are helpful but could feel intrusive for some. The free model is generous, making it accessible for individual learners, though power users might want more advanced organizational features. Overall, Glasp is a solid choice for serious learners willing to integrate it into their daily research workflow.

Pros & Cons

Pros

Works seamlessly across multiple browsers and platforms including YouTube, PDFs, and Kindle
Robust export options to popular note-taking apps (Notion, Obsidian, Roam) in multiple formats
Unique social discovery feature lets you follow thought leaders and see their highlights
AI clone learns from your highlights to provide personalized insights and act as digital legacy
Completely free with no apparent limitations for core features

Cons

Requires consistent use to build substantial value from AI clone and knowledge graph features
Social aspect may not appeal to users who prefer private, personal knowledge management
Learning curve to fully utilize organizational features like tags and the knowledge graph
Limited information about data privacy and how AI clone processes personal highlights

Best For

Researchers and academics who need to organize insights from multiple sourcesStudents building a knowledge base for long-term learning and exam preparationContent creators and writers gathering references and inspiration from the webLifelong learners who want to track their intellectual journey and build a digital legacyKnowledge workers who use note-taking apps like Notion, Obsidian, or Roam Research