Glasp Web Highlighter

Glasp Web Highlighter

AI-powered web highlighter for websites, PDFs, and YouTube videos. Build your AI clone from highlights and connect with 1M+ learners worldwide.

Chrome Web Store logo
4.5
3.78
837 ratings
500.0K+Users
Microsoft Edge Store logo
4.0
4.25
3 ratings
6.7K+Users
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Glasp Web Highlighter has become a popular knowledge management tool on the internet, with over 1 million active users and a solid 4.5-star rating from over 830 reviews on the Chrome Web Store. We have tested this tool extensively and found out why it is so popular among researchers, students, and content creators.


What sets Glasp apart from other highlighting tools is its unique combination of social learning features and AI-powered summarization. Unlike traditional bookmarking tools, Glasp allows you to highlight text directly on web pages, in PDF files, and even in YouTube videos with timestamps, and then create a personalized AI clone from your collected knowledge.


In our tests, we found Glasp to be particularly effective for academic research and content creators, although there are some limitations, especially with the free version, that potential users should be aware of. The tool is excellent for storing and processing information.

Key Features

  • Multi-Platform Highlighting: Highlight text on websites, PDFs, and YouTube videos with multiple color options
  • AI-Powered Summaries: Generate summaries using ChatGPT, Claude, and Gemini models • Social Learning Network: Connect with 1M+ users and discover content from like-minded learners
  • Cross-Platform Sync: Access your highlights across all devices with automatic synchronization
  • Export Integration: Export highlights to Obsidian, Notion, Roam Research, and other note-taking apps
  • Kindle Integration: Import and sync highlights from Kindle ebooks

Pros

  • Comprehensive feature set
  • Large, active user community
  • Works on all major browsers
  • Multiple AI models supported
  • Flexible export options

Cons

  • Premium models expensive for basic user
  • Occasional technical issues
  • Free Version only offers public highlights

Pricing

Glasp offers a freemium model that's quite generous for basic users but has some notable limitations that might push users toward the premium plan.

pricing

The pricing structure is reasonable for serious users, but the daily limits on AI features can be frustrating for those who want to use the tool extensively without upgrading.

Review

8.9

Glasp Web Highlighter earned a score of 8.9 out of 10 in our tests. This rating signifies a highly reliable tool that performs excellently in most areas.

In our review of Glasp, we considered the categories Features, Design, Ease of Use, Security & Privacy, Value for Money and Performance. Each category was given equal importance and we'll dive into the details of each in the following section.

Features
9.5

Highlighting features: In our tests, Glasp's highlighting features worked flawlessly. We were able to highlight text on a variety of websites, in PDF files, and even in YouTube transcripts without any issues. Thanks to the numerous color options and the ability to add notes to each highlight, we were able to easily organize and retrieve our information across different types of content.

AI integration: We tried the AI summary feature with ChatGPT, Claude, and Gemini and found the results really useful for summarizing our highlights and asking questions.

Social learning: We explored the social features by browsing other users' highlights and sharing our own. However, we found it a bit intrusive that this is mandatory in the free version.

Export options: Exporting our highlights to Obsidian and Notion worked smoothly. We tested all available formats (Markdown, HTML, CSV, JSON) and found the flexibility helpful for integrating Glasp into our existing workflows.

Design
9.3

During our tests, the user interface appeared clear and intuitive. The sidebar did not interfere with reading, but was accessible at all times to view highlights and notes. We liked the color-coded highlights, which made it easier to scan and visually organize information.
The dashboard was well structured and had clearly arranged areas for highlights, notes, and social functions. This made it easy for us to get an overview of all the information we had collected.

Ease of Use
9.0

Setting up Glasp was quick—we installed the extension, created an account, and were able to start tagging within minutes. The introductory video was clear and helped us get up to speed quickly.
Tagging text and selecting colors was straightforward. We didn't need to consult the help section for basic usage, and the process felt very natural.

When we looked at features such as creating AI clones and advanced export options, it became a little more complex. It took some trial and error to figure out how to best use these tools. Overall, the tool is definitely designed so that anyone can use most of its features.

Security & Privacy
8.0

During our review, we found that Glasp collects website content and some personal data to enable its features. By default, some of our highlights were shared publicly. We had to adjust our settings to keep the information private. Therefore, it is important to be aware of this, especially since it is mandatory for free users.

Value for Money
8.8

We made extensive use of the free plan and found that unlimited tagging and basic organization and access to the social network is more than sufficient for most users.

For heavy users, especially researchers and content creators, the additional AI features and private tags are worth the price of the Pro plan. The price is similar to that of competitors.

Compared to other tools we've tested, Glasp offers a more comprehensive set of features, making the price competitive in the knowledge management space. For those of us who rely on knowledge management in our work, the time savings and improved organization easily justified the Pro subscription.

Performance
8.7

In our experience, marking and saving content was quick and almost instantaneous on websites and in PDF files. The extension did not noticeably slow down our browsers.

Most features worked reliably, but we occasionally encountered problems with YouTube transcription and AI summaries, which were also mentioned by users in their reviews.

Conclusion

Glasp Web Highlighter has proven in testing that it can help users interact with digital content in a useful way in their everyday lives. It is not just a highlighting tool, but a comprehensive organization system that combines the best aspects of social learning with AI technology.

What we particularly appreciate about Glasp is that it encourages a more intensive engagement with the content. Instead of passively bookmarking pages, users are motivated to highlight specific passages and add notes, which leads to better retention and understanding. It is therefore particularly specialized in learning content.

However, Glasp is not without its challenges. The limitations of the AI features and privacy restrictions in the free version may be problematic for many users. In addition, some users report technical issues with the YouTube transcription features.

For researchers, students, and content creators who are seriously interested in building a kind of second brain, Glasp offers compelling value. The combination of highlighting, AI summarization, and social learning creates a unique ecosystem that is difficult to replicate with other tools. Casual users, however, may find the complexity and pricing structure daunting.

Deals 🔥

8.9

Impressive

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Glasp is available on Chrome Web StoreGlasp is available on Safari Extension StoreGlasp is available on Microsoft Edge StoreGlasp is available on OperaGlasp is available on BraveGlasp is available on Vivaldi

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