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Research annotation

Diigo alternatives (2026)

Diigo is a long-running research highlighter: sticky notes, outliner, classroom features. Alternatives appear when you want meaning search across a mixed library rather than an annotation suite.

Updated

Ranked by job

  1. Markwisethis site

    Best for: Personal research you will ask later

    Highlights + Copilot. Not a classroom LMS or outliner.

    Markwise vs Diigo

  2. Readwise Reader

    Best for: Highlighting as a first-class reading feature

    Closer to Diigo's annotation culture, with a modern reader.

    Markwise vs Reader
Full feature matrixMarkwise vs Diigo

Questions

Does Markwise replace Diigo groups?+

No. Public Spaces are shareable pages, not Diigo's research groups or classroom tools.