Obsidian/Q/In Obsidian, is there any spaced repetition flashcard system available either built in or through popular community plugins?

• In Obsidian, is there any spaced repetition flashcard system available either built in or through popular community plugins?

  • AI Answer

    • AI/Response
    • Short answer: No built-in SRS. Obsidian core has no spaced repetition or flashcard functionality. The dominant community plugin is Obsidian/Plugin/Spaced Repetition (obsidian-spaced-repetition by st3v3nmw), which supports multiple card formats and uses SM-2. A newer alternative, Obsidian/Plugin/Recall, uses the FSRS algorithm. Anki-bridge plugins exist for those who prefer the Anki ecosystem.

    • Built-in support

      • None. Obsidian's core app has no Flashcard/Spaced Repetition System|SRS or flashcard feature.

    • Community plugins

      • 1. Obsidian/Plugin/Spaced Repetition (most popular)

        • Algorithm: SM-2 (same family as Anki's default scheduler)
        • Card formats:
          • Single-line: Question :: Answer inside a note tagged #flashcards
          • Multi-line: question and answer separated by a ? line
          • Cloze: ==highlighted text== becomes a cloze deletion
        • Also supports whole-note review — a note itself is scheduled for revisit on a decay curve
        • Review UI lives in Obsidian's sidebar panel

      • 2. Obsidian/Plugin/Recall

        • Algorithm: FSRS (Flashcard/Spaced Repetition System/Free|Free Spaced Repetition Scheduler) — a more modern, better-calibrated algorithm than SM-2
        • Supports note-level and card-level scheduling

      • 3. Flashcards (reuseman)

        • Plugin ID: flashcards-obsidian
        • Syntax is close to Anki's native format
        • Less actively maintained as of 2025

      • 4. Anki bridge plugins (Obsidian to Anki / AnkiSync)

        • Bridges Obsidian notes to the external Anki desktop app via the AnkiConnect add-on
        • Anki handles all scheduling; Obsidian is the authoring environment only
        • Requires Anki and AnkiConnect running locally; syncs to AnkiWeb for cross-device review

    • Practical recommendation

      • Stay in Obsidian: use Obsidian/Plugin/Spaced Repetition (SM-2, large community, actively maintained) or Obsidian/Plugin/Recall (FSRS, newer algorithm with better memory modeling)
      • Prefer Anki's ecosystem: use an Anki-bridge plugin; Anki's scheduling is battle-tested and syncs across devices via AnkiWeb

    • Sources

      • obsidian-spaced-repetition GitHub
      • Recall GitHub
      • Obsidian community plugins — spaced repetition