
Glasp
A social web highlighter that saves annotations as a public knowledge graph, with AI summaries of anything you highlight.
Product preview

Overview
Glasp is a social highlighting layer for the web: save annotations as a public knowledge graph, follow other learners, and let AI summarize everything you highlight.
The public-by-default model is its identity — your highlights become shared learning material, and the AI summaries turn scattered marks into reusable notes.
Pros / Cons
Pros
- Highlights become a public knowledge graph
- AI summaries of saved passages
- Follow and learn from others
- Exports to note-taking apps
Cons
- Public-by-default concerns privacy-minded users
- PDF support is weaker than web
- Export formats are basic
Who it's for
Building a public learning portfolio
Research highlight collection
Following expert readers
Bottom line
Glasp turns reading into a public, remixable knowledge base.
Key Features
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Frequently asked questions
What is Glasp?
Glasp is a Productivity tool developed by Glasp. The company was founded in 2021 and is headquartered in Remote / USA. A social web highlighter that saves annotations as a public knowledge graph, with AI summaries of anything you highlight.
Is Glasp free?
Glasp uses a freemium model: a free tier is available, and paid plans unlock more usage and advanced features.
Is Glasp open source?
No — Glasp is proprietary software.
What are the best alternatives to Glasp?
Notable Productivity alternatives include Notion AI, Grammarly, Canva AI. Browse all 4 tools in our Productivity category for a full overview.
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Basic Info
- Pricing
- Freemium
- Rating
- ★ 4.4 (1,800 reviews) Ratings explained
- Platforms
- Extension
- Founded
- 2021
- Headquarters
- Remote / USA
- Last verified
- 2026-09-08