GoKawiilObsidian Canvas and Heptabase diverge sharply in how they store notes, analysis finds
A technical comparison contrasts how Obsidian Canvas and Heptabase handle spatial note-taking. Obsidian Canvas saves layouts as JSON-based .canvas files that embed existing markdown notes, while Heptabase treats cards as central, reusable entities that can appear across multiple whiteboards simultaneously. The analysis notes that a connecting line in Obsidian only records visual position, whereas in Heptabase it creates a relationship the linked cards retain and can surface elsewhere.
GoKawiil's interpretation of the reporting above, not reported fact.
The architectural difference suggests Obsidian's format favors portability and openness, since .canvas files use an open JSON standard and connections aren't locked into proprietary indexing. Heptabase's model could better support users who want their notes' relationships tracked system-wide, but that convenience may come at the cost of vendor lock-in. Users choosing between the tools may need to weigh long-term data portability against richer built-in context awareness.
- Obsidian Canvas stores layouts in open JSON .canvas files referencing markdown notes.
- Heptabase treats cards as global entities with connections indexed across the whole workspace.
- Obsidian offers more portability; Heptabase offers deeper cross-whiteboard context tracking.
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Published there as: “An architectural comparison of Obsidian Canvas and Heptabase”
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