Comparison
Logseq vs Obsidian
Logseq and Obsidian are both local-first knowledge tools that keep your notes as plain files you own — but they model thinking differently. Logseq is open-source and outliner-first, where every bullet is a block. Obsidian is a mature, page-first app with an enormous plugin ecosystem, free for personal use but closed source. Here's how they compare.
Choose Logseq if
Choose Logseq if you want an open-source, outliner-first tool where everything is a block, your notes stay plain-text files you own, and you value free-and-open over the largest plugin catalog.
Logseq Trust Report ›Choose Obsidian if
Choose Obsidian if you want the most mature, plugin-rich local Markdown app with a page-first model — free for personal use and hugely extensible, though its core is closed source.
Obsidian Trust Report ›| Foundation | ||
| Your data | Local files Markdown / Org | Local files Markdown |
| License | Open source AGPL-3.0 | Proprietary Free for personal use |
| Model | Outliner Block-first | Pages Document-first |
| Ecosystem | ||
| Plugins | Growing | Huge Large community |
| Maturity | Younger | Very mature |
| Mobile apps | Yes | Yes |
| Privacy & cost | ||
| Local-first | Yes | Yes |
| Sync | Optional E2EE Logseq Sync | Optional Paid Sync or DIY |
| Price | Free | Free Personal use |
The bottom line
Choose Logseq if
Choose Logseq if you want an open-source, outliner-first tool where everything is a block, your notes stay plain-text files you own, and you value free-and-open over the largest plugin catalog.
Choose Obsidian if
Choose Obsidian if you want the most mature, plugin-rich local Markdown app with a page-first model — free for personal use and hugely extensible, though its core is closed source.
Frequently asked questions
What is the difference between Logseq and Obsidian?
Logseq and Obsidian are both local-first knowledge tools that keep your notes as plain files you own — but they model thinking differently. Logseq is open-source and outliner-first, where every bullet is a block. Obsidian is a mature, page-first app with an enormous plugin ecosystem, free for personal use but closed source. Here's how they compare. In short: choose Logseq if choose Logseq if you want an open-source, outliner-first tool where everything is a block, your notes stay plain-text files you own, and you value free-and-open over the largest plugin catalog. Choose Obsidian if choose Obsidian if you want the most mature, plugin-rich local Markdown app with a page-first model — free for personal use and hugely extensible, though its core is closed source.
Is Logseq or Obsidian cheaper?
At our last review, Logseq is listed at “Free · open source (optional paid Logseq Sync)” and Obsidian at “Free · Sync $4/mo”. Pricing is recorded as published by each developer and re-checked when the report is refreshed.
Which of Logseq and Obsidian supports more platforms?
Logseq runs on Windows · macOS · Linux · iOS · Android · Web. Obsidian runs on Windows · macOS · Linux · iOS 14.5+ · Android.
Are Logseq and Obsidian both safe to use?
Both carry an independent Altapp Trust Report. Logseq: 7/9 of nine checks verified, last full review Jul 19, 2026. Obsidian: 8/9 of nine checks verified, last full review Jul 17, 2026. Each covers source verification, data and permissions, and known risks. Altapp publishes no score of its own — the count is a tally of what could be independently confirmed.