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Glasp

Glasp is a free social web highlighter that allows users to capture, organize, and share their favorite quotes and ideas from web articles and YouTube videos. It fosters 'learning in public' by connecting users with shared interests.

Our take: Glasp is a browser-extension-based highlighting tool that lets users clip text from web pages, PDFs, and YouTube videos into a personal, shareable profile.

Best forGlasp is ideal for lifelong learners, researchers, students, writers, and knowledge workers who frequently consume online content and wish to capture, organize, and share their insights effectively
ReviewedPricing: Freemium
7.3 out of 105 criteria · see breakdown
Try GlaspFree; Pro from $12.50/mo (billed annually)
The bottom line

The go-to social highlighter for learners who want to capture ideas across the web and build a public knowledge graph.

Our score

Reviewed by the Conversion Gems editorial team. Hover a facet to focus it; click to pin.Tap a facet to focus it.

What it is, and why we rate it

One line each. Open a row for detail.

What it really isGlasp — social web & YouTube highlighter with AI summarization and public knowledge sharing.
Our takeGlasp is a browser-extension-based highlighting tool that lets users clip text from web pages, PDFs, and YouTube videos into a personal, shareable profile.
Its defining social twist — 'learning in public' — lets you follow other users' highlights and discover ideas by topic. Glasp introduced Pro and Unlimited paid tiers, with pricing updated in May 2026.
Why we rate itGlasp fills a genuine gap: most read-later tools are private silos, while Glasp turns personal annotations into a social discovery layer.
The YouTube timestamped highlighting and AI summarization features add real leverage for video-heavy researchers, and the Notion/Obsidian/Readwise integrations keep it from being a dead end.
The catchThe social model only works if the people you want to follow are also on Glasp — the network is still niche.
The free tier's PDF and audio limits are low, and private highlights require a paid plan, which may surprise users expecting a fully free tool.

Best / not good for

Best for
  • Students and researchers building a public annotation portfolio
  • YouTube-heavy learners who want AI-summarized video transcripts
  • Knowledge workers syncing highlights to Notion, Obsidian, or Readwise
Not good for
  • Teams needing collaborative annotation with shared workspaces
  • Users who want fully private highlighting without paying
  • Enterprise document annotation workflows
Trade-offs

Friction report

Trade-offs to know before signing up.

  1. Time to value
    Fast: install Chrome extension, sign up, and start highlighting in under 3 minutes. First highlight is saved and shareable immediately.
  2. Scale breakpoint
    YouTube summary and PDF upload quotas become limiting on the free tier quickly; heavy users hit Pro limits on advanced summaries (1,000/mo) before considering the Unlimited plan.
  3. Walled garden
    Moderate: highlights are exportable to Markdown/CSV and sync to Notion/Obsidian/Readwise, but your public profile and social graph live exclusively on Glasp.
Still a fit?
If none of these block you, start on the free plan.
Try Glasp

A look inside

Glasp product screenshot

Frequently Asked Questions

What is Glasp and what does it offer?

Glasp is a social web highlighter and knowledge-sharing tool that allows users to highlight content on web pages and share insights with their network. It’s designed to help users capture key information and collaborate efficiently.

How does Glasp help users manage information?

Glasp enables users to highlight important text, add personal notes, and organize highlights for future reference. Shared highlights allow others to see and interact with the information, fostering collaborative learning.

Is Glasp easy to use?

Yes, Glasp is user-friendly with simple browser extensions and a clean interface. Users can highlight content and save notes in just a few clicks without any technical knowledge.

Can Glasp integrate with other tools?

Yes, Glasp can integrate with browsers and other productivity tools, allowing highlights and notes to be easily stored, accessed, and shared across platforms.

Who should use Glasp and what are the benefits?

Glasp is ideal for students, researchers, knowledge workers, and content creators. Benefits include efficient content highlighting, easy information sharing, collaborative learning, and organized knowledge management.

Alternatives

  • Step up

    Readwise Reader for deeper annotation workflows with spaced-repetition review.

  • Lighter alternative

    Hypothes.is for free, open-source web annotation without social features.

Showing 1–2 of 2

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Tags

#NoteTaking#Highlights#Productivity

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