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Comparison · Collab
SiYuan vs Syncthing
A side-by-side editorial comparison of SiYuan and Syncthing — release velocity, themes, recent moves, and the top alternatives to consider.
SiYuan vs Syncthing: at a glance
What is SiYuan?
SiYuan 3.8.9 reaches RC, adding AI-agent extraction of images embedded in PDFs.
SiYuan moved 3.8.9 from beta.6 to rc.1 on Oct 28. The RC's only new item is AI-agent extraction of images embedded in PDFs; the rest of its long list matches beta.5's cumulative notes: pinned agent sessions, backlink filtering by database fields, block-reference collection through database automation, resizable table rows, mind-map themes and node copy/paste, TIFF previews and macOS proxy detection.
What is Syncthing?
Syncthing 2.1.7 hits a fourth release candidate as fixes move from protocol to sync logic.
Syncthing's 2.1 line added device and folder groups, HTTP CONNECT proxies, optional block indexing and configurable GUI sessions. Every tracked entry since then is a patch release candidate. 2.1.6 took four RCs, and 2.1.7 is now on rc.4, which adds sync-model fixes for metadata shortcuts, parent ownership and receive-only folders on top of rc.3's protocol validation.
SiYuan vs Syncthing: editorial side-by-side
SiYuan
5.0COLLAB
SiYuan 3.8.9 reaches RC, adding AI-agent extraction of images embedded in PDFs.
◆ Current state
SiYuan moved 3.8.9 from beta.6 to rc.1 on Oct 28. The RC's only new item is AI-agent extraction of images embedded in PDFs; the rest of its long list matches beta.5's cumulative notes: pinned agent sessions, backlink filtering by database fields, block-reference collection through database automation, resizable table rows, mind-map themes and node copy/paste, TIFF previews and macOS proxy detection.
◆ Where it's heading
The 3.8.x line keeps turning databases and mind maps into structured tools that act on the block graph, and the built-in agent is gaining reach into document content such as PDFs. The release cadence is fast and noisy, with most builds repeating the same cumulative notes.
◆ Prediction
A stable 3.8.9 is likely within days, with little added beyond fixes now that it has reached RC.
Syncthing
5.0COLLAB
Syncthing 2.1.7 hits a fourth release candidate as fixes move from protocol to sync logic.
◆ Current state
Syncthing's 2.1 line added device and folder groups, HTTP CONNECT proxies, optional block indexing and configurable GUI sessions. Every tracked entry since then is a patch release candidate. 2.1.6 took four RCs, and 2.1.7 is now on rc.4, which adds sync-model fixes for metadata shortcuts, parent ownership and receive-only folders on top of rc.3's protocol validation.
◆ Where it's heading
The project is stabilising the SQLite backend that came with 2.x and tightening the network protocol, and rc.4 extends that to correctness fixes in the sync model itself. Releases go through several RCs before going stable, roughly every two to three weeks.
◆ Prediction
Expect 2.1.7 stable after rc.4, followed by more 2.1.x patches on SQLite and sync correctness. The entries don't show what 2.2 will bring.
Alternatives to SiYuan and Syncthing
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 SiYuan or Syncthing.
KACE
KACE extends its PHP2SHELL fix to the SDA deployment appliance, six days after disclosure.
Mattermost
Mattermost v12 puts user-scoped permissions, private models and audit trails on every agent action.
AFFiNE
AFFiNE's canaries stay on upkeep: a Swift Collections bump follows CVE and migration fixes.
Teable
Teable's Structured Query v2 now reports across multi-hop relations, with a strict mode against SQL.
Readwise
Readwise splits its bundle into Reader-only and Highlights-only plans and renames its first app.
See all SiYuan alternatives → · See all Syncthing alternatives →
Recent activity from SiYuan and Syncthing
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoSiYuanSiYuan 3.8.9 RC1: AI agent extracts images from PDFs
- 1d agoSiYuanSiYuan 3.8.9 beta 6 (same notes as beta 5)
- 1d agoSiYuanSiYuan 3.8.9 beta 5: full notes incl. pinned agent sessions
- 2d agoSiYuanSiYuan 3.8.9 beta 4 improves LaTeX paste and import
- 2d agoSiYuanSiYuan 3.8.9 beta 3 (same notes as beta 1)
- 2d agoSiYuanSiYuan 3.8.9 beta 2 (same notes as beta 1)
- 8d agoSyncthingSyncthing 2.1.7 rc.4 fixes ownership and receive-only sync
- 11d agoSyncthingSyncthing 2.1.7 rc.3 validates incoming protocol messages
- 16d agoSyncthingSyncthing 2.1.7 rc.2 adds discovery announcement fix
- 21d agoSyncthingSyncthing 2.1.7 rc.1 fixes SQLite edge cases
- 29d agoSyncthingSyncthing 2.1.6 rc.4 adds Windows logging fix
- 1mo agoSyncthingSyncthing 2.1.6 rc.3 respin
Frequently asked questions
What is the difference between SiYuan and Syncthing?
They serve adjacent needs but don't currently overlap on shipped themes. SiYuan and Syncthing are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is SiYuan better than Syncthing?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. SiYuan and Syncthing are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
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.
What are the best alternatives to Syncthing?
Top Syncthing alternatives in Collab are ranked by recent ship velocity. Browse the "Syncthing alternatives" section above for the current picks, or visit /alternatives/syncthing for the full list with editorial commentary on each.