Description
Glasp is a free social web and PDF highlighter paired with an AI learning assistant. Users highlight text on any webpage, PDF, YouTube video, or Kindle book, keep everything organized in one library, and turn their highlights into a personal AI memory that summarizes and answers questions from their own saved ideas.
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Adding the Glasp extension to Chrome, Safari, Edge, Firefox, and other browsers lets users select text and highlight it, add notes, and sync across devices. Glasp can generate AI summaries and transcripts of YouTube videos with timestamps, summarize PDFs, and let users chat with their highlights. Highlights are public by default, making them shareable without login and part of a social discovery layer, with private highlights available on Glasp Pro.
Glasp integrates with the rest of a user's stack: it imports from Kindle, Medium, Instapaper, Snipd, and Hypothesis, and exports to Notion, Obsidian, and Roam, or as Markdown, HTML, CSV, and JSON. An MCP connector exposes highlights to AI tools like Claude, and mobile apps for iOS and Android add a native Reader, YouTube summaries, and widgets. It states it is used by more than 2 million researchers and learners.
- CategoryAI Summarizers
- Pricing ModelFreemium
- DeploymentCloud, Browser extension
- PlatformsWeb, Chrome, iOS
Glasp's Core Features
Web and PDF highlighter across browsers
YouTube highlighting with timestamps and AI summaries
Kindle, Medium, and Instapaper import
Personal AI memory and chat with highlights
PDF summaries and audio transcription
Export to Notion, Obsidian, Roam, and file formats
MCP connector for Claude and other AI tools
Social highlights shareable without login
How to use Glasp?
Add the extension: Install the Glasp extension in Chrome, Safari, Edge, or Firefox.
Highlight content: Select text on any webpage, PDF, YouTube video, or Kindle book and click highlight.
Add notes: Annotate highlights while they are fresh; they sync across your devices.
Organize your library: Tag, search, and revisit everything in one place.
Recall with AI: Chat with your highlights, get summaries, and build your AI memory.
Export or connect: Send highlights to notes apps or expose them to AI tools via the MCP connector.
Glasp's Use Cases
- Research and reading
- YouTube learning
- Personal AI memory
- Knowledge management
