Glasp is a social web and PDF highlighter that doubles as an AI memory for what you read. Install the extension for Chrome, Safari, Edge or Firefox, select text on any article, PDF, YouTube video or Kindle book, and it is saved to one searchable library sorted by tag and author. From there you can get one-click AI summaries of articles, PDFs and YouTube videos, chat with your own highlights, or describe a half-remembered idea and have it resurface. Over two million people use it, and iOS and Android apps were rebuilt in 2026.
Researchers collecting evidence across papers, students turning lectures and readings into reviewable notes, and writers who keep a swipe file of quotes are the clearest fit. Lifelong learners who want a personal archive of ideas also use it, and product managers and designers who read a lot online treat it as a lightweight reading companion. Because answers come from what you saved rather than the open internet, it suits people who want recall of their own material instead of generic responses. Social features let you follow others and see what they highlight.
Typical workflows start with reading an article and highlighting key lines, then adding a note while the idea is fresh. Highlights can be imported from Kindle, Pocket, Readwise, Instapaper, Medium and several other apps, and exported to Notion, Obsidian, Roam, Zotero or as Markdown, CSV and JSON. A student might clip a YouTube lecture with timestamps and ask questions about it later, while a writer pulls saved quotes into Obsidian when drafting. An MCP connector and API let you bring your highlights into other AI tools and automations.
