Everything Glasp does

Highlight it. Keep it. Ask it later.

One extension for the web, PDFs, YouTube and Kindle — and a library that answers questions instead of just storing files.

4.5 on Chrome Store2,000,000+ highlightersChrome · Safari · Edge · Firefox
In short

What is Glasp?

Glasp is a free social web and PDF highlighter for Chrome, Safari, Edge and Firefox, with iOS and Android apps. You highlight anything on the web, in PDFs, on YouTube or in Kindle books; every passage is saved with its source, author and date in one searchable library; and AI turns that library into summaries, answers and new ideas drawn from your own reading. Highlights export to Notion, Obsidian, Markdown, CSV and JSON, and are shareable by URL.

Price
Free — no credit card
Platforms
Chrome · Safari · Edge · Firefox · iOS · Android
Readers
2,000,000+
Capture

Highlight anything you read

Make sense of it

Turn a library into answers

Keep it yours

Organize, share and get it out again

Publish and discover

Reading is better with other people in it

Every page, in one place

The full index

Highlight

AI

Import & export

Publish & discover

2,000,000+

researchers, students, and lifelong learners highlight with Glasp.

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What readers say

  • “I love Glasp! I use it every time I read online articles. Highlighting with Glasp enforces me to actually read rather than scan through an article. I retain so much more info and can easily revisit my previously read articles to recall details and notes I've made.”
    Olive
    Product Designer
  • “I've researched every highlighting tool from Liner and Hypothesis to Instapaper and Pocket, and Glasp is the best hands-down. First, it creates a whole category of its own with social highlighting. This is important because it helps learners get recognized for finding amazing highlights, and it helps them connect with others who are learning the same thing at the same time. Also, it has the best highlighting workflow. While reading an article, you can select text in order to highlight and annotate without having to go to a different page. Furthermore, all of your highlights for a specific article appear on a right sidebar as you're reading, and they're easy to copy and paste into another note-taking app.”
    Michael Simmons
    Bestselling Author
  • “I used Instapaper but ended up hating it and stopped. There just wasn't a tool for me to continue using until Glasp. I was hooked immediately for the ease of use (highlight directly on the article web page), organized feed, and learning from others' highlights and notes. It makes sticking to learning something so easy and you can no longer find any excuses. Highly recommended to anyone who loves reading awesome articles or want to start forming such habit.”
    Puppy Tsai
    Product Manager
Answers

Frequently asked questions

What does Glasp do?

Glasp is a free social web and PDF highlighter. You highlight anything on the web, in PDFs, on YouTube and in Kindle books; everything lands in one searchable library with its source attached; and AI turns that library into summaries, answers and new ideas built from your own reading.

Is Glasp free?

Yes. Highlighting, notes, tags, search and every export format are free with no credit card, and every account includes a free monthly AI quota. Glasp Pro adds unlimited private highlights and higher AI limits.

Which browsers and devices does Glasp support?

The extension runs on Chrome, Safari, Edge and Firefox, and Brave and Opera install the Chrome build. There are also iOS and Android apps with a native Reader, YouTube summaries and a Safari mobile extension.

Can I bring highlights over from another app?

Yes. Import from Kindle, Pocket, Medium, Instapaper, Readwise, Hypothesis, Diigo, Raindrop and Weava, and convert Kindle clippings files directly.

Can I get my highlights out again?

Always. Export to Notion, Obsidian, Roam Research and mem.ai, or download as Markdown, HTML, CSV, plain text or JSON. Nothing is locked in.

What makes Glasp different from other highlighters?

It is social and AI-native. Highlights are shareable by URL without a login, you can see what other readers stopped at on the same page, and everything you keep feeds an AI you can question — including from Claude and other tools through the MCP connector.

More questions? Read the docs or email hi [at] glasp.co.

Collect ideas worth sharing

Add Glasp to your browser and start highlighting the web today. It's free.