Reviewed by Harsh Desai · Last reviewed:
Glasp
An AI knowledge tool that turns your highlights into a personalized second brain and shareable
Best for
What does Glasp do?
- •1M+ users trusted by over one million researchers, students, and writers worldwide.
- •AI clone builder create a personalized AI version of yourself from all your highlights and notes.
- •YouTube highlights add timestamps and notes to any video with one click inside the player.
- •Import sources pull highlights automatically from Kindle, Pocket, Medium, Readwise and many others.
- •Smart organization sort every highlight using tags, authors, full-text search and daily reminders.
- •Export options send notes to Notion, Obsidian or Roam Research in Markdown, JSON or CSV formats.
- •Community sharing publish public highlights and see what others in your network are saving.
- •Browser extensions install free Chrome or Safari extension in under 30 seconds.
- •Mobile access use the iOS and Android apps to review highlights on the go.
- •Chat with knowledge ask questions and get answers drawn only from your personal highlights.
- •Timestamped Video Notes Highlight YouTube videos with precise timestamps and attach detailed notes for 1,000,000+ users building AI clones.
- •smooth Import Integration Automatically pull highlights from Kindle, Pocket, Medium, Readwise and 10+ other platforms into your personal knowledge base.
- •Daily Review Reminders Receive scheduled notifications with your top tagged highlights to reinforce learning and feed your personalized AI clone daily.
- •Multi-Format Notion Export Send organized highlights with authors and tags directly to Notion, Obsidian or Roam Research in Markdown, JSON or PDF formats.
Pricing:
- •Free $0 unlimited public highlights, 3 YouTube summaries per day, 30 PDF files and limited chat messages.
- •Pro $12.50/mo unlimited private highlights, 1000 YouTube summaries per month, 500 PDF chat messages and full export options.
- •Unlimited $30/mo 5000 YouTube summaries, unlimited PDFs, 5000 chat messages, priority support and no caps on usage.
What are Glasp's limitations?
- •Free tier limits strict caps on summaries, PDF uploads, transcription minutes and daily chat messages.
- •Paid features private highlights and advanced AI clone functions require a Pro or Unlimited plan.
- •YouTube caps channel tracking and video summaries stay limited even on the highest paid tier.
- •Browser only core highlighting and annotation still depend on installing the Chrome or Safari extension.
Our Verdict
For the Basic User, Glasp turns any webpage or YouTube video into a highlight machine that automatically saves notes and timestamps so you never lose an important idea again. The free Chrome and Safari extensions make it dead simple to capture content from Kindle, Pocket or Medium and send everything straight to Notion or Obsidian without extra steps. Daily review reminders keep your knowledge fresh and the community feed shows what other students and writers are saving right now.
For the Vibe Builder, Glasp lets you construct a living second brain that learns your exact voice and thinking style from every saved highlight. You chat with your personal AI clone to brainstorm, summarize research or generate new ideas that already match how you think. The clean tagging system and author filters turn scattered notes into beautiful, searchable mood boards you can share with your team or audience.
Glasp earns a solid 8/10 because the free plan works well for light users yet the strict limits on summaries, PDFs and chat force most serious researchers to upgrade quickly. The browser extension requirement and YouTube caps can frustrate power users who want everything unlimited from day one.
Skip it if you only need simple bookmarking and try Readwise instead.
Related Tools
View all
Compare Glasp With
Also Useful For
Frequently Asked Questions
What is Glasp and how does it build an AI clone?
Glasp is a social web highlighter that lets you highlight text on any webpage or YouTube video and save it to your personal knowledge base. It builds an AI clone of you by training on all your saved highlights, notes, and bookmarks so the AI can respond in your personal style or summarize content the way you would. This creates a second brain that mirrors your thinking for research and content creation.
Is Glasp free to use in 2026?
Yes, Glasp has a free tier in 2026 that gives you unlimited public highlights, 3 YouTube summaries per day, 30 PDF files, and limited chat messages. You can start using it right away without paying anything.
Who should use Glasp for research and note taking?
Researchers, students, and knowledge workers who need to collect web articles, YouTube videos, and PDFs into one searchable library should use Glasp for research and note taking. Its AI features that generate summaries and answer questions based on your own highlights make it especially useful for people building a personal knowledge base.
How does Glasp compare to Readwise as an alternative?
Glasp and Readwise both save highlights but Glasp focuses more on social features, YouTube video summaries, and creating an AI clone from your notes. Readwise emphasizes importing from Kindle and other ebook sources with stronger spaced repetition tools, while Glasp gives better PDF chat and export options on paid plans.
What are all Glasp pricing tiers and limits?
Glasp pricing tiers include a Free $0 plan with unlimited public highlights, 3 YouTube summaries per day, 30 PDF files and limited chat messages. The Pro $12.50/mo plan adds unlimited private highlights, 1000 YouTube summaries per month, 500 PDF chat messages and full export options, while the Unlimited $30/mo plan provides 5000 YouTube summaries, unlimited PDFs, 5000 chat messages, priority support and no caps on usage.
Affiliate link: we may earn a commission. How this works.
Glasp
Free tier available