Logseq
Free (open source) / optional paid sync
Obsidian
Free (personal) / Sync ~$4 per mo
Logseq is an open-source, outliner-based knowledge tool built around daily notes and local Markdown. Obsidian is a flexible, document-based local vault with linking and a huge plugin ecosystem. Logseq wins on outlining and open source; Obsidian wins on flexibility and plugins.
Pick Logseq if you think in outlines and daily notes and want a free, local-first, open-source knowledge tool.
Pick Obsidian if you want a flexible, document-based local vault with linking and the biggest plugin ecosystem.
Logseq and Obsidian are both local-first, privacy-friendly knowledge tools that store your notes as plain-text files, but they organize thinking differently. Logseq is an outliner: everything is a bullet, daily journals are central, and block references make it natural for people who think in nested outlines, all in an open-source package. Obsidian is document-based and extremely flexible, with bidirectional links, a graph view, and one of the largest plugin ecosystems in the space.
On price, Logseq is free and open source (with optional paid sync), while Obsidian is free for personal use with paid add-ons like Sync around $4 a month. The choice is mostly outliner-style, open-source note-taking (Logseq) versus a flexible, plugin-rich document vault (Obsidian).
We compare outlining, plugins, local files, open source, and price.
| Quick facts | Logseq | Obsidian |
|---|---|---|
| Structure | Outliner / blocks | Documents + links |
| Price | Free (open source) | Free / Sync ~$4/mo |
| Open source | Yes | No |
| Plugin ecosystem | Growing | Best-in-class |
| Best for | Outliners + open source | Flexible vault + plugins |
Each row reflects the feature on each product's current public release.
| Feature | L Logseq | O Obsidian |
|---|---|---|
| Local plain-text files | Yes | Yes |
| Outliner / block references | Best-in-class | Good |
| Daily notes / journaling | Best-in-class | Good |
| Bidirectional links & graph | Strong | Best-in-class |
| Plugin ecosystem | Growing | Best-in-class |
| Open-source codebase | Yes | No |
| Mobile apps | Good | Best-in-class |
| Free to use | Best-in-class | Personal use |
Pricing and features change often. Always verify the current details on each product's official site. Last reviewed 2026-06-26.
Things neither product's marketing page leads with.
Logseq is open source and great for outliner thinking, but its plugin ecosystem and polish trail Obsidian.
Obsidian is more flexible and plugin-rich, but it is not open source and outlining is less central.
For block-based outlining Logseq shines; for a flexible, extensible vault Obsidian leads.
The average person juggles a dozen subscriptions and forgets at least one. Subkept is a privacy-first subscription tracker: add Logseq, Obsidian, and everything else, then get renewal reminders, price-hike alerts, and a clear monthly total, with no bank connection, ever. Free for up to 5 subscriptions, no time limit.