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Quick Look

Glasp is an AI-powered Chrome extension that allows users to highlight text on websites and PDFs, annotate YouTube videos, and summarize content using AI models.

AI Overview

Who is this for?

Students, researchers, writers, and anyone who wants to efficiently capture, organize, and share information from the web and PDFs.

Key Features

  • Highlighting and annotating web pages, PDFs, and YouTube videos with multiple colors.
  • AI-powered summarization of web articles, PDFs, and YouTube videos.
  • Organizing highlights with tags and notes, and sharing them easily.
  • Discovering content from other users and building a knowledge base.

Reviews Analysis

Overall Sentiment

Mostly Positive

Users generally find Glasp to be a powerful and useful tool for highlighting, annotating, and summarizing content across various platforms, with particular praise for its AI features and ease of use.

Note: AI analysis focuses on the substance and recency of reviews, which may differ from the overall store rating.


What Users Love

  • Excellent for highlighting and annotating web content and PDFs.
  • AI summarization features are highly appreciated.
  • Easy to organize and share highlights across devices and platforms.

Points to Consider

  • × Some users may encounter occasional highlighting issues on certain pages.
  • × The AI features, while powerful, can sometimes produce unexpected results.

Official Description

From the Developer


AI-powered Web Highlighter for Websites, PDF, and YouTube videos. YouTube Summary with ChatGPT, Claude, and Gemini.

Highlight PDF and Websites, save it for later, and share it with everyone.

Glasp is a PDF & Web highlighter that helps you collect and organize your favorite quotes and thoughts from the web. You can also access other like-minded people’s learning and build your AI clone from your highlights and notes.

"Glasp Web Highlighter: PDF & Web Highlight" is a free Chrome Extension that lets you quickly highlight websites and PDF files with colored highlighting options, which are then automatically curated to your Glasp homepage. These highlights can then be tagged, searched for, linked to, and shared on a variety of other platforms, including Twitter, Teams, and Slack. YouTube, web article, and PDF summarization functions are powered by AI models such as ChatGPT (OpenAI), Claude (Anthropic), Mistral AI and Gemini.

You can see all the highlights and notes in the sidebar on the web and PDF, and clicking each highlight takes you to the highlighted place in the web page or inside the PDF. Also, you can tag the web page and PDF and see what other people highlighted in the website or PDF from the sidebar. With one click, the content you’ve collected appears across all your devices!

Check out your highlights on your Glasp page or in the original source, where they remain highlighted. Discover more content on the Glasp website and connect with other like-minded readers who share your interests. By following your friends or like-minded people, you will discover insightful and thought-provoking content that deepen your knowledge and understanding.

Highlight. Annotate. Save. Share. Repeat. Make an impact, become a knowledge curator.

Key Features: βœ… Web & PDF highlight with multiple colors: πŸ”΄ 🟑 🟒 πŸ”΅ βœ… Highlight & annotate on YouTube videos: πŸŽ₯ βœ… AI-powered summary based on annotations: πŸ’Ž βœ… Highlight & annotate on PDF files: ✍️ βœ… Highlight & annotate on Images: πŸ–ΌοΈ βœ… Make notes on the highlights: ✍️ βœ… Tag and link-to your highlights: 🏷️ πŸ”— βœ… Copy-and-paste all the highlights and notes with meta data into your note-taking app in one click πŸ“ βœ… Discover more useful content from other curators: 🀝 βœ… Sync all your highlights and notes from Kindle eBooks: πŸ“š βœ… YouTube Summary with ChatGPT and Claude: ❀️ βœ… Summarize YouTube videos, web articles, and PDF: ❀️ βœ… Generate stunning quoteshots from webpages 🎨

How to Use Glasp:

Adding Glasp to Chrome

  • Click β€œAdd to Chrome”
  • Log in to Glasp from the extension menu

Using Glasp in Chrome

  • Select the text you want to highlight using your mouse or trackpad
  • Select the highlight color from the Glasp pop-up highlighter tool

Using Your Highlights

  • View you highlights on your Glasp Profile Page
  • Tag your highlights, make notes, summarize your highlights with a page comment, and share your highlights and notes by creating links or directly copy and pasting into other apps. It’s that easy.

To see a tutorial of how to use the Glasp Chrome Extension, please click the link to see a demonstration video on YouTube: https://www.youtube.com/watch?v=Tgbszoeokv4

Pro Tips / Troubleshooting:

  • Adding tags to saved content will help you organize your interests.
  • If you can’t highlight on a web page, try switching tabs or refreshing the page.
  • For more details, please check our our FAQs page ;) https://blog.glasp.co/faqs/

Why Choose Glasp? What you collect says so much about who you are. Glasp lets you grasp it! Meet and learn with 500,000+ life-long learners!

  • Retain information, keep it organized, and easily use it πŸ“š
  • Discover useful information from like-minded people πŸ”
  • Share your highlights & notes with friends and peers with one click πŸš€
  • Contextualize what you learned and be a better write ✍️
  • Leave your digital legacy for future generations (contribute to human history) πŸ™Œ

Trusted by 500,000+ Users: Glasp is trusted by content writers, avid readers, active note-takers, researchers, thinkers, students, and people who seek for better reading and knowledge management workflow.

Write your feedback to hi@glasp.co

If you find bugs, please let us know from here: https://docs.google.com/forms/d/e/1FAIpQLSf-l_PApQyXi7cX4ZO7kZ6ARW8JXLesiTzvwae-nvWISp3P3A/viewform

By installing the extension, you agree to Glasp’s Terms of Service, Privacy Policy, and Community Guidelines (which can be found here: https://glasp.co/privacy-policy).

Your extension? Let us know if we can update or correct anything!

Key Info

  • Rating:
    4.5/5.0

    (850 ratings)

  • Users:500,000
  • Version:1.2.13
  • Updated:Aug 04, 2025
  • Developer:Visit Website β†’

Stats from Chrome Web Store