Select text on any webpage or PDF, add a note, and keep it — tagged, searchable and yours. Free on Chrome, Safari, Edge and Firefox.
Reading on your phone?
Highlight any page on your phone — in the Glasp app's Reader, or right inside mobile Safari with the iOS extension.
Glasp is a free browser extension that highlights text on any webpage or PDF and keeps it with a note. Each highlight is saved with its source URL, author and date, so you can copy every highlight from a page in one click, export them to Notion, Obsidian, Markdown or CSV, and search them years later. It runs on Chrome, Safari, Edge and Firefox, and syncs across all of them.
Install Glasp on Chrome, Safari, Edge, or Firefox. It is free, and there is no account needed to start highlighting.
Select any text on a webpage or PDF and pick a color. Add a note while the thought is fresh — it is attached to the exact sentence.
Copy every highlight from a page in one click, export to Notion, Obsidian, Markdown or CSV, or ask your highlights a question later.
Select text anywhere — an article, a documentation page, a PDF opened in the browser, a YouTube transcript — pick a color, and it is saved. Four highlight colors, notes on any passage, and keyboard shortcuts once it becomes a habit.
One click copies all of a page's highlights and notes with their metadata — title, author, URL and date — already formatted. No scrolling back through the article to reconstruct what you meant.
Send highlights to Notion, Obsidian, Roam Research or mem.ai, or download them as Markdown, HTML, CSV, plain text or JSON. Your reading is not stuck inside Glasp, and it never will be.
Every highlight has a URL, so you can send someone the three sentences that mattered instead of a 4,000-word article and a vague 'the part about pricing'. Your profile collects everything you have read in public, and people can follow it. No account needed to read what you share.
Glasp is a social highlighter, which is the part most highlighters do not have. When other people have highlighted the same page or book, their passages are there too — so the sentences a crowd of readers all stopped at surface on their own, instead of you re-deriving them.
Upload a PDF, highlight it, and copy its text as Markdown, XML or plain text.
Highlight a video at a timestamp and jump straight back to that moment.
Turn a page's highlights into a summary written from what you chose to keep.
Tag highlights as you make them, then find any passage across years of reading.
Bring highlights over from Kindle, Pocket, Medium, Instapaper, Readwise and more.
The MCP connector lets Claude and other AI tools answer from your own highlights.
researchers, students, and lifelong learners highlight with Glasp.
“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.”
“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.”
“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.”
Glasp is a free browser extension that lets you highlight text on any webpage or PDF and attach notes to it. Every highlight is saved with its source URL, author and date, so you can copy them all in one click, export them to a note-taking app, or search them later. It works on Chrome, Safari, Edge and Firefox.
Yes. Highlighting, note-taking, tagging, one-click copy and every export format are free with no credit card. Glasp Pro adds unlimited private highlights for people who want to keep their reading to themselves.
Yes. Glasp ships a Safari extension on the Mac App Store, and the same extension works in Safari on iPhone and iPad, so highlights you make on your phone appear on your desktop. Chrome, Edge and Firefox have their own listings, and Brave and Opera install the Chrome build.
Yes. Glasp highlights PDFs opened in the browser the same way it highlights a webpage, and you can also upload a PDF to Glasp to read, highlight and chat with it. See the PDF highlighter page for the details.
Yes. Export to Notion, Obsidian, Roam Research and mem.ai, or download as Markdown, HTML, CSV, plain text or JSON. Nothing is locked in — you can take everything with you at any time.
Highlights are stored in your Glasp account and sync across every browser you sign into. Highlights are public by default so that other readers can find them, and any highlight can be made private; Glasp Pro removes the limit on how many private highlights you can keep.
Yes. Glasp re-anchors your highlights to the same sentences when you reopen the page, so a page you have annotated stays annotated. If the publisher rewrites the page, the highlight is still safe in your library with its original text.
Yes, and this is what makes Glasp different from a private highlighter. When other readers have highlighted the page you are on, Glasp can show you their passages, so the sentences that many people stopped at surface without you having to hunt for them.
Yes. Glasp highlights YouTube videos with timestamps and imports your Kindle highlights, so video, book and web notes end up in the same searchable library.
Glasp is used in the United States, Canada, the United Kingdom, Australia, Spain, Germany, France, Italy, Brazil, Mexico, India and Japan among others, and highlights work on pages in any language the browser can render.
More questions? Read the docs or email hi [at] glasp.co.
Add Glasp to your browser and start highlighting the web today. It's free.
Start on your phone
Highlight any page on your phone — in the Glasp app's Reader, or right inside mobile Safari with the iOS extension.