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Comparison · Collab
Pydio Cells vs SiYuan
A side-by-side editorial comparison of Pydio Cells and SiYuan — release velocity, themes, recent moves, and the top alternatives to consider.
Pydio Cells vs SiYuan: at a glance
What is Pydio Cells?
Cells v5 rebuilt content and metadata, and the two releases since have gone straight into sync repair
Cells v5 landed in late May with a new Pages display, a custom metadata system rebuilt around an Entity Values store, and reworked microservices for clustered deployments. The two releases since are maintenance: sync engine fixes covering partial sync, event ordering, metadata propagation and goroutine lifecycles, iOS client compatibility restored, plus server-to-server sync diff handling and Helm and Docker packaging cleanups.
What is SiYuan?
SiYuan is shipping eight 3.8.4 alphas in a week, adding AI agent DB control and mobile parity.
SiYuan is an open-source, self-hostable block-based PKM on a rapid alpha cadence. Eight 3.8.4 alphas shipped in under a week, building on the 3.8.3-beta.1 foundation that added remote kernel support and tabbed container blocks. The current release surface now includes AI agent control over database schema, mobile PDF annotation, document pinning, and configurable workspace appearance.
Pydio Cells vs SiYuan: editorial side-by-side
Pydio Cells
0.0COLLAB
Cells v5 rebuilt content and metadata, and the two releases since have gone straight into sync repair
◆ Current state
Cells v5 landed in late May with a new Pages display, a custom metadata system rebuilt around an Entity Values store, and reworked microservices for clustered deployments. The two releases since are maintenance: sync engine fixes covering partial sync, event ordering, metadata propagation and goroutine lifecycles, iOS client compatibility restored, plus server-to-server sync diff handling and Helm and Docker packaging cleanups.
◆ Where it's heading
The shape is a large platform release followed by a stabilisation tail concentrated almost entirely on the sync engine — both maintenance releases name sync reliability first. For a file platform that is the load-bearing subsystem, so this is the expected cost of touching every layer at once, not a detour.
◆ Prediction
Expect further stable-branch maintenance focused on sync and clustered deployment before feature work resumes on the v5 line.
SiYuan
5.0COLLAB
SiYuan is shipping eight 3.8.4 alphas in a week, adding AI agent DB control and mobile parity.
◆ Current state
SiYuan is an open-source, self-hostable block-based PKM on a rapid alpha cadence. Eight 3.8.4 alphas shipped in under a week, building on the 3.8.3-beta.1 foundation that added remote kernel support and tabbed container blocks. The current release surface now includes AI agent control over database schema, mobile PDF annotation, document pinning, and configurable workspace appearance.
◆ Where it's heading
Two architectural moves define this cycle: an AI-agent-first data layer — where the agent can now configure database fields, not just query them — and a remote-kernel execution model separating the SiYuan kernel from the frontend. Mobile parity is the sustained third push, with iPadOS 26 compatibility, mobile-specific database bottom sheets, and PDF annotation on mobile all landing across this alpha train.
◆ Prediction
A 3.8.4 beta should land within days given the alpha pace; expect it to consolidate AI agent database integration and the remote kernel GUI as headline features. The next directional capability surface is not visible in these entries.
Alternatives to Pydio Cells and SiYuan
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Pydio Cells or SiYuan.
Nuclino
Nuclino ships its MCP server in January 2026, making the team knowledge base queryable by AI agents—a directional move toward AI-native knowledge management.
Wiki.js
Wiki.js 3.0 beta closes enterprise auth and SEO gaps at sprint pace
GitHub
GitHub Copilot adds adaptive model orchestration and self-resolving code review in a single week.
Asana
Asana embeds AI into Slack threads and closes the rich-text gap with Notion
Hive
Hive is building shared AI automation infrastructure into the core of its PM platform.
See all Pydio Cells alternatives → · See all SiYuan alternatives →
Recent activity from Pydio Cells and SiYuan
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 8h agoSiYuanSiYuan alpha.8: document pinning, agent DB fields, mobile PDF
- 11h agoSiYuanSiYuan alpha.7: document pinning and typed kernel API contracts
- 2d agoSiYuanSiYuan alpha.6: AI agent timeouts configurable, workspace gradient control
- 3d agoSiYuanSiYuan alpha.5: iPadOS 26 support and backlink filtering controls
- 4d agoSiYuanSiYuan alpha.4: AI agent can now configure database fields
- 4d agoSiYuanSiYuan alpha.3: remote kernel GUI, rich table editing, shortcut conflicts
- 2mo agoPydio CellsServer2Server sync fix and minor deployment fixes
- 3mo agoPydio CellsSync engine repairs, iOS compatibility, and new operator tooling
- 3mo agoPydio CellsMajor Release - Pages, Metadata and much more ⚡
Frequently asked questions
What is the difference between Pydio Cells and SiYuan?
They serve adjacent needs but don't currently overlap on shipped themes. SiYuan is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Pydio Cells better than SiYuan?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. SiYuan is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
What are the best alternatives to Pydio Cells?
Top Pydio Cells alternatives in Collab are ranked by recent ship velocity. Browse the "Pydio Cells alternatives" section above for the current picks, or visit /alternatives/pydio-cells for the full list with editorial commentary on each.
What are the best alternatives to SiYuan?
Top SiYuan alternatives in Collab are ranked by recent ship velocity. Browse the "SiYuan alternatives" section above for the current picks, or visit /alternatives/siyuan for the full list with editorial commentary on each.