Open-source outliner knowledge base built by Logseq Inc. Every note is a Markdown or Org-mode file on disk; every bullet within a note is a first-class block with its own identifier, reference, and query surface.
Core app free under AGPL-3.0. Optional Sync add-on at $5/month delivers end-to-end encrypted cross-device sync. Local-first by default: files live in a folder you control, and you can back up with any filesystem tool.
System Verdict
Pick Logseq if you think in bullets and want Roam-style block references without the subscription. Block-level transclusion, daily journal as the primary entry point, and query language are all first-class. Files stay plain-text markdown, so the vault survives the vendor.
Skip it if you want page-style document editing or real-time collaboration. Obsidian is the better pick for mixed page + note workflows; Notion AI handles teams. Logseq’s mobile apps are functional but trail Obsidian’s polish.
Who pays which tier: Core app free forever under AGPL-3.0. Logseq Sync at $5/mo for end-to-end encrypted cross-device sync. Power users can instead sync via iCloud, Syncthing, or git.
Key Facts
| License | AGPL-3.0 (fully open-source) |
| Storage model | Plain-text Markdown or Org-mode on disk |
| Core paradigm | Outliner; every bullet is a block with block references |
| Graph view | Native, page-level and block-level |
| PDF annotation | Built-in, highlights become blocks |
| Query language | Datalog-style queries and simple tag filters |
| Whiteboards | Native canvas feature since 2023 |
| Mobile apps | iOS and Android |
| Desktop | Windows, macOS, Linux |
| Sync | $5/mo Logseq Sync · or roll-your-own (iCloud, Syncthing, git) |
| AI | Plugin ecosystem (e.g., logseq-ai-assistant); bring your own LLM API keys |
Every data point verified 2026-04-17 against logseq.com and the GitHub repo.
What it actually is
A Roam-Research-style outliner that stores everything as plain files. The daily journal is the default entry point; you write bullets that become blocks; blocks get referenced across pages via ((block-id)) transclusion or [[Page Name]] wiki links.
The moat is the outliner plus block references. Obsidian’s strength is page-level notes with wiki links between them; Logseq’s strength is block-level granularity, so a single bullet written once can appear referenced on many pages without copy-paste.
Files stay Markdown (.md) or Org-mode (.org) on disk, your choice. The vault is a folder. You back it up with whatever filesystem or git tool you already use.
When to pick Logseq
- You think in outlines, not documents. If your brain produces bullets before paragraphs, Logseq fits the shape.
- You want Roam’s model without the $165/year. Logseq ships the same block-reference mechanics under AGPL-3.0.
- Daily journaling drives your system. The journal page is the default; every day gets its own file automatically.
- You annotate PDFs for research or study. Native PDF annotation with highlight-as-block is built in.
- Open-source licensing is a hard requirement. AGPL-3.0 is the strongest copyleft among mainstream note tools.
When to pick something else
- Page-style documents and mixed workflows: Obsidian. Page-centric model with optional outliner plugins.
- Team collaboration, shared databases, real-time: Notion AI. Logseq is single-user.
- Free single-source research Q&A: NotebookLM.
- Polished mobile-first note-taking: Apple Notes or Bear. Logseq mobile is usable but basic.
- AI-native notes out of the box: Notion AI or Obsidian with Copilot plugin + Claude key.
Pricing
| Plan | Price | Who’s it for |
|---|---|---|
| Logseq (core) | $0 | All users; full features, no caps |
| Logseq Sync | $5/mo | Anyone syncing across devices; E2E encrypted |
Prices verified 2026-04-17 via logseq.com/pricing. Sync is optional; iCloud Drive, Syncthing, or git work fine for power users.
Against the alternatives
| Logseq | Obsidian | Notion | Roam Research | |
|---|---|---|---|---|
| Price | Free + $5/mo sync | Free + $4/mo sync | Free tier + $10/user/mo | $15/mo |
| License | AGPL-3.0 | Proprietary (free app) | Proprietary | Proprietary |
| Paradigm | Outliner (blocks) | Page-based + optional outliner | Page + database | Outliner (blocks) |
| Local-first files | Yes (MD/Org) | Yes (MD) | No (cloud) | No (cloud) |
| Block references | Native, first-class | Plugin-assisted | Limited | Native |
| Real-time collab | No | No | Yes | Yes |
| Graph view | Yes | Yes | No | Yes |
| Best viewed as | Roam-without-subscription | PKM power tool | Team workspace | Outliner reference |
Failure modes
- Mobile trails desktop. Syncing is reliable but the mobile UI is a stripped-down view. Heavy capture on phone is clunkier than Apple Notes or Bear.
- No real-time collaboration. Multi-device sync works; concurrent editing does not. Last-write-wins conflicts.
- Smaller plugin ecosystem than Obsidian. Several hundred plugins vs Obsidian’s 2,690+. Functional gaps exist.
- Config-heavy for polish. Default theme and keybindings are functional; most users tune extensively.
- AGPL-3.0 can complicate embedding. Enterprises building products on top must ship source of derivative works.
- Core team velocity has been uneven. Major v1.0 release has slipped; the long-term roadmap is not as predictable as Obsidian’s.
Methodology
This page was produced by the aipedia.wiki editorial pipeline. Last verified 2026-04-23 against logseq.com, the GitHub repo, and community plugin registry.
FAQ
Is Logseq really free?
Yes. Core app is AGPL-3.0 with no feature caps. The only paid add-on is Logseq Sync at $5/month for end-to-end encrypted cross-device sync. You can also sync for free via iCloud Drive, Syncthing, or git.
How is Logseq different from Obsidian?
Both store plain-text markdown locally. Logseq is outliner-first (every bullet is a block with references); Obsidian is page-first (every file is a note). Logseq’s block references are native; Obsidian needs plugins for equivalent granularity. Obsidian has a larger plugin ecosystem and more polished mobile; Logseq has daily journal built in.
Does Logseq have AI features?
Not in the core app. The plugin ecosystem ships AI integrations that use your own LLM API keys (Claude, OpenAI frontier models, Gemini). The community plugin logseq-ai-assistant is the common entry point.
What about Roam Research?
Logseq is effectively the open-source Roam clone. Block references, bi-directional links, daily journal, and queries all match the Roam model. Roam is $15/month; Logseq is free. Most Roam users who left over price or data ownership ended up on Logseq.
Can I import my Obsidian vault?
Yes. Logseq reads Markdown files from any folder. Obsidian’s wiki links work. Obsidian’s plugin-dependent syntax (Dataview, Templater) does not port; you rebuild queries in Logseq’s Datalog-style syntax.
Related
- Category: AI Notes
- Also see: Obsidian (page-based local-first alternative) · Notion AI (team workspace) · NotebookLM (research Q&A)
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Cite this page For journalists, researchers, and bloggers
According to aipedia.wiki Editorial at aipedia.wiki (https://aipedia.wiki/tools/logseq/) aipedia.wiki Editorial. (2026). Logseq — Editorial Review. aipedia.wiki. Retrieved May 8, 2026, from https://aipedia.wiki/tools/logseq/ aipedia.wiki Editorial. "Logseq — Editorial Review." aipedia.wiki, 2026, https://aipedia.wiki/tools/logseq/. Accessed May 8, 2026. aipedia.wiki Editorial. 2026. "Logseq — Editorial Review." aipedia.wiki. https://aipedia.wiki/tools/logseq/. @misc{logseq-editorial-review-2026,
author = {{aipedia.wiki Editorial}},
title = {Logseq — Editorial Review},
year = {2026},
publisher = {aipedia.wiki},
url = {https://aipedia.wiki/tools/logseq/},
note = {Accessed: 2026-05-08}
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