Glasp
Glasp is a social web & PDF highlighter that uses AI to summarize, timestamp videos, import/export notes, and build a personal knowledge-sharing network.
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Glasp is a social web & PDF highlighter that uses AI to summarize, timestamp videos, import/export notes, and build a personal knowledge-sharing network.
These are the questions we get asked the most about us.
Glasp is a free AI-powered web and PDF highlighter, note-taking tool, and social knowledge platform. It allows users to highlight content from web pages, YouTube videos, and PDFs, and organize these insights into a personal knowledge base. Glasp also enables social discovery by letting users explore others’ highlights, making it a collaborative tool for learning and idea sharing. Its latest AI features let you generate summaries, create personalized AI clones, and sync knowledge with note-taking apps.
Web & PDF Highlighting: Highlight and annotate any text on websites and PDF documents.
YouTube Timestamp Highlighting: Save specific time-stamped notes from YouTube videos.
AI Summary Generation: Summarize long articles or video content using ChatGPT, Claude, or Gemini.
Social Knowledge Discovery: Browse highlights and notes shared by like-minded users.
Kindle Highlight Import: Bring your Kindle highlights into Glasp for unified knowledge storage.
Personal AI Clone: Train an AI assistant based on your highlights to answer questions or provide summaries.
Export to Notes: Send highlights to Notion, Obsidian, Roam Research, and more.
Multi-Device Support: Use via Chrome/Safari extensions, Android/iOS apps, or the web app.
Students & Researchers
Educators.
Content Curators
Marketers
Writers & Bloggers
Book Lovers & Knowledge Sharers
Lifelong Learners
Productivity & PKM Enthusiasts
Study & Research: Save and organize insights from academic articles, PDFs, or videos.
Content Creation: Collect quotes, stats, and snippets for blogs, videos, or newsletters.
Knowledge Management: Build a second brain of important ideas, synced across apps.
AI-Powered Summarization: Summarize complex articles and videos instantly.
Learning with Community: Discover trending highlights and connect with like-minded readers.
Free Forever: All core features—highlighting, sharing, AI summaries, Kindle import, social feed.
Premium Plan (Coming Soon): Expected to include advanced AI features, custom AI clones, priority support, deeper integrations.
No credit card required for signup. Current features are 100% free.
Glasp focuses on public knowledge sharing + AI assistance. Unlike Readwise (focused on review), Glasp is social and allows highlight discovery. Compared to Notion or Tana, it's more lightweight and faster for quick knowledge capture. The addition of AI summaries and clone assistant gives it an edge for fast learners and productivity geeks.
Totally free
AI-powered summaries and smart highlighting
Browser extension + mobile support
Exports to major note apps
Public sharing & community discovery
No offline mode
Limited customization of highlight appearance
Premium plan not yet released (for heavy users wanting more AI/automation)
Glasp is a must-have productivity tool for modern learners, creators, and readers. With seamless highlighting, AI summarization, and note export, it helps you turn passive reading into actionable knowledge. Whether you’re building a second brain, studying smarter, or just collecting cool ideas—Glasp is a free, AI-powered tool that belongs in your digital toolkit.