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Obsidian vs Logseq: catalog facts
Obsidian	Logseq
Free Free for everyone, including commercial use, in the vendor’s own words. Obsidian Sync and…	Freemium The app is free and open source under the AGPL 3.0. Logseq Sync is a paid service, and…
Windows, macOS, Linux, Android, iOS, Browser extension	Windows, macOS, Linux, Android, iOS
Notes are plain Markdown files in a folder you control, readable without the app Linking, backlinks, tags, graph view and fast search across the vault	Notes are plain Markdown files in a folder you control Block-level linking and embedding, not just page links
The application is not open source, only the plugin ecosystem and the releases repository Syncing between devices means paying for Obsidian Sync or wiring up your own sync tool	The database version is in beta and the project warns data loss is possible Outliner structure does not suit long-form prose
Downloadable app, Browser extension	Downloadable app
Closed source	Open source
License not stated	License: AGPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.