Glasp (Software)
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| Private | |
| ISIN | 🆔 |
| Industry | Software, Education technology |
| Founded 📆 | 2021 |
| Founders 👔 | Kei Watanabe, Kazuki Nakayashiki |
Area served 🗺️ | |
| Products 📟 | Glasp (social web highlighting platform) |
| Members | |
Number of employees | |
| 🌐 Website | glasp |
| 📇 Address | |
| 📞 telephone | |
Glasp is a social web highlighting and knowledge-sharing platform based in San Francisco, California. The service enables users to highlight, annotate, and share text from web pages so others can discover, learn from, and build upon those insights. The name “Glasp” stands for “Greatest Legacy Accumulated as Shared Proof.”
History
Glasp was founded in 2021 in San Francisco by Kei Watanabe and Kazuki Nakayashiki.[1]
Funding
In 2023, Glasp raised a U.S.-based funding round that included participation from venture capital firms Goodwater Capital and Untapped Capital, as well as angel investors Phil Libin (founder of Evernote) and Mike Greenfield. JETRO reported that the round reflected growing international interest in Glasp’s approach to AI-supported learning and knowledge sharing.[2]
Growth and milestones
In 2025, Glasp was selected as one of the “Top 50 most innovative early-stage startups” by the GSV Cup, an international competition recognizing emerging edtech startups.[3] According to an article in the GTM Strategist series titled “How Glasp Grew to 3.5 Million Users Organically,” the platform reached more than 3.5 million users worldwide by 2025 through organic growth and community-driven adoption.[4]
Features and technology
Glasp provides a browser-based highlighting tool that allows users to select and save passages from web pages, add notes, and organize them into themed collections.
In December 2022, shortly after the release of ChatGPT, Glasp launched YouTube Summary with ChatGPT, a feature that automatically generates AI-powered summaries of YouTube videos. It was one of the first publicly available tools of its kind, introducing a new category of “AI video summarization” products and helping popularize the use of large language models for educational content review and research. This feature enabled users to access concise text summaries directly from YouTube pages, effectively bridging long-form video learning with textual knowledge management inside Glasp.
Media coverage and recognition
Glasp has been covered or mentioned by international publications including Forbes, MakeUseOf, Nikkei Asia, The Guardian and The Economic Times, often in the context of AI-powered learning and productivity tools.[5][6][7][8][9]
In 2024, Glasp was featured in a dedicated case study by Pinecone Systems, which highlighted how Glasp achieved five-times cost savings on knowledge access for millions of users by leveraging Pinecone’s vector database.”[10]
In 2025, Stripe featured Glasp co-founder and CEO Kazuki Nakayashiki in its official developer-focused YouTube series, in an interview titled "From social learning to AI clones with Glasp". In the video, Nakayashiki discussed Glasp’s origin, its social learning model, and long-term vision to create AI clones that replicate users’ knowledge and thinking patterns through their saved highlights.[11]
Glasp’s YouTube Summary feature was also highlighted by the popular technology channel Think Media, which featured it among recommended AI productivity tools for content creators.[12]
The platform has also been listed as an AI tool for learning by universities such as Georgetown University’s Center for New Designs in Learning and Scholarship (CNDLS), Carnegie Mellon University, and the University of Kent.[13][14][15]
Reception and impact
Commentators in the edtech and productivity sectors have described Glasp as part of a new wave of “social reading” and knowledge-sharing tools that blend personal note-taking with public collaboration. Writers in Search Engine Journal and Digital Trends have highlighted its role in bridging AI tools and human learning communities.[16][17]
See also
References
- ↑ "How Glasp helps users visualize their knowledge – and share it with the world". Japan External Trade Organization (JETRO). 2024-09-11.
- ↑ "How Glasp helps users visualize their knowledge – and share it with the world". Japan External Trade Organization (JETRO). 2024-09-11.
- ↑ "GSV Cup 50". GSV Summit. Retrieved 2025-11-06.
- ↑ "How Glasp Grew to 3.5 Million Users Organically". GTM Strategist. 2025-10-24.
- ↑ "Democratizing Knowledge: Meet Glasp - An AI Thunderbolt". Forbes. Retrieved 2025-11-05.
- ↑ "5 Online Highlighter Extensions to Annotate Web Pages and Save Notes". MakeUseOf. Retrieved 2025-11-05.
- ↑ "Japan startup founders build Silicon Valley network one meal at a time". Nikkei Asia. Retrieved 2025-11-05.
- ↑ "Incredibly smart or incredibly stupid? What we learned from using ChatGPT for a year". The Guardian. Retrieved 2025-11-05.
- ↑ "Here are 5 ChatGPT-based extensions for Chrome to increase productivity". The Economic Times. Retrieved 2025-11-05.
- ↑ "Glasp achieves 5X cost savings in knowledge access for millions of users with Pinecone". Pinecone. Retrieved 2025-11-05.
- ↑ "From social learning to AI clones with Glasp". Stripe Developers. 2025-08-25.
- ↑ "10 Insane AI Tools Every Creator Should Be Using". Think Media. 2023-03-31.
- ↑ "Teaching Tools". Georgetown University CNDLS.
- ↑ "Generative AI and Software Engineering Education". Carnegie Mellon University. Retrieved 2025-11-06.
- ↑ "Ensuring Our Personalities Shine Through When Using AI to Create Digital Content". University of Kent. Retrieved 2025-11-06.
- ↑ "22 Of The Best ChatGPT Chrome Extensions To Try". Search Engine Journal. Retrieved 2025-11-06.
- ↑ "The best ChatGPT Chrome extensions to bring AI to your browser". Digital Trends. Retrieved 2025-11-06.
External links
This article "Glasp" is from Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:Glasp. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one.
