Alternatives to Liner

Browser extension for highlighting, bookmarking and AI-summarizing webpages. The listings below can replace it for an important use case. Each note says what changes if you switch.

The original

Replacements

Listings that take over the same core job as Liner.

  • Hypothesis

    Highlights and annotates any web page or PDF, privately or in a group.

    Hypothesis is free and open source under BSD-2-Clause and supports private, group and public annotation layers, but has no bookmarking or AI summaries and needs an account.

Also worth comparing

These listings name Liner as their own alternative, so the relationship runs both ways.

  • Diigo

    A web annotation and bookmarking service with a browser extension for highlighting, tagging and saving pages.

    Liner combines highlighting, bookmarking and AI summaries of pages, PDFs and videos, with AI features processed in the cloud and likely limited on the free tier.

  • Glasp

    A browser extension and mobile app for highlighting text on web pages and PDFs and collecting notes.

    Liner combines highlighting with bookmarking and AI summaries of pages, PDFs and videos, on a freemium plan that relies on cloud processing, and offers no mobile apps listed.

Similar software

Related functionality, not a direct replacement.