Obsidian is a local-first knowledge management tool, but sync and publish features are paid. devpick lists OSS providing equivalent link-based knowledge management completely free.
- Bidirectional links with SiYuan and Logseq including backlinks and graph view by default
- Block references with paragraph-level referencing and embedding in SiYuan
- Free sync via self-hosting without Obsidian Sync subscription costs
- Database views in SiYuan with table, kanban, and calendar formats
- Cross-platform support across Windows, macOS, Linux, and mobile in both tools
For feature-rich block-based notes choose SiYuan, and for outliner-style daily journaling choose Logseq.
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