What Glasp is

Glasp saves highlights and notes from web pages and PDFs and connects them to a wider knowledge workflow. It is especially helpful for turning reading into a reusable set of excerpts—provided citations are preserved.

Feature coverage

  • Web highlighting
  • PDF highlighting
  • YouTube transcript notes
  • Knowledge collection
  • AI-assisted summaries

What stands out

  • Works across several source formats
  • Useful annotation workflow
  • Substantial public user base

Tradeoffs to know

  • Social features are not for everyone
  • AI summaries need source checks
  • Not a full citation manager

Permissions and privacy

Page access

Highlighting requires access to the content being annotated. Avoid using it on private documents until its current data flow fits your requirements.

Data notes

Saved highlights can reveal reading interests and research topics. Review Glasp’s account and visibility controls before building a library.

Pricing

Free tier; paid plan options. Pricing and plan limits change more often than store metadata, so use the linked developer page as the final check before subscribing.

Alternatives

AlternativeZotero ConnectorAlternativeSciSpaceAlternativeMyBib

Sources

We used the official Chrome Web Store listing and first-party developer material. Public metrics can change after the fact-check date.

  1. Chrome Web Store listing

    Store metrics and supported formats.

  2. Glasp website

    Feature, account, and plan information.

  3. Extension Reviewer methodology

    How we verify public claims and weigh tradeoffs.

View in Chrome Web Store Developer site

More in Research & citations

See the research & citations guide