Glasp

Glasp is a free social web & PDF highlighter with 1M+ users. It lets you highlight text on web pages and PDFs, add notes, and use an AI writing assistant to turn collected highlights into articles. Available as Chrome and Safari extensions, with support for importing from Kindle, Pocket, and Medium, and exporting to Roam Research, Notion, and Obsidian.

Web and PDF text highlighting; AI writing assistant (generates articles from highlights); Social features (follow others, discover popular content); Import from Kindle/Pocket/Medium; Export to Roam/Notion/Obsidian; YouTube transcript highlighting; Daily review feature; Tag and search management

Install the Chrome or Safari extension, then select text on any webpage or PDF to highlight it. View all highlights on your Glasp homepage, use the AI writing assistant to generate articles from collected content, and share with the community or export to other tools.

Completely free to use; Social knowledge sharing helps discover others' curated content; AI writing assistant transforms fragmented notes into complete articles; Multi-platform import/export support; 1M+ active user community

Completely free, no paid plans.

Help center documentation, YouTube tutorial videos, and community support available.

Available as Chrome and Safari extensions, free to download from respective extension stores.

Ideal for researchers, students, content creators, and knowledge workers to build personal knowledge bases.