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noVNC vs SiYuan

A side-by-side editorial comparison of noVNC and SiYuan — release velocity, themes, recent moves, and the top alternatives to consider.

noVNC vs SiYuan: at a glance

FeaturenoVNCSiYuan
SectorCollabCollab
Velocity score0.06.3
Sparks · 30d00
Top themesremote desktop, vnc, annual cadence, browser clientknowledge-management, ai-agent, mcp, cross-platform
Last editorial update12d ago3h ago
WebsiteVisit →Visit →

What is noVNC?

noVNC ships about once a year, and its betas and finals carry identical notes.

noVNC released 1.7.0 in April 2026, six months after its beta and thirteen months after 1.6.0. Each release pairs a beta and a final whose release notes are word-for-word identical — 1.6.0 and its beta were even published sixteen seconds apart. The 1.7.0 highlights are modest: Croatian and Hungarian translations, a styling fix for near-invisible buttons, and a warning before closing a session tab when view-only is off.

Read the full noVNC trajectory →

What is SiYuan?

SiYuan stabilises 3.8.1 after a seven-build beta run, all of it widening the agent surface it opened in 3.8.0

SiYuan has just cut 3.8.1 stable, the endpoint of a beta chain that ran six builds in five days. The release groups into three areas: AI integration work - custom editor actions syncing across devices, an Agent panel shortcut, user-level skills read from a shared agents directory, nested rerank API formats and OpenAI Responses API support; editing and database throughput, including virtualised grouped-table rendering and faster document loading; and cross-platform reliability covering HEIF/HEIC previews, PDF export and mobile behaviour. A batch of MCP and publishing-service fixes rounds it out.

Read the full SiYuan trajectory →

noVNC vs SiYuan: editorial side-by-side

N
noVNC
COLLAB
0.0

noVNC ships about once a year, and its betas and finals carry identical notes.

◆ Current state

noVNC released 1.7.0 in April 2026, six months after its beta and thirteen months after 1.6.0. Each release pairs a beta and a final whose release notes are word-for-word identical — 1.6.0 and its beta were even published sixteen seconds apart. The 1.7.0 highlights are modest: Croatian and Hungarian translations, a styling fix for near-invisible buttons, and a warning before closing a session tab when view-only is off.

◆ Where it's heading

The project moves at roughly one release a year and spends it on polish and protocol compatibility rather than direction. The 1.6.0 cycle was the most substantial recently — declarative configuration through defaults.json and mandatory.json, relative WebSocket URLs, faster session resize — and 1.7.0 is lighter than that. This is infrastructure being kept correct, not extended.

◆ Prediction

Expect the next release around a year out, again paired with a beta carrying the same notes, and again weighted toward translations, encoding compatibility and interface fixes. Nothing in these entries points to a structural change.

S
SiYuan
COLLAB
6.3

SiYuan stabilises 3.8.1 after a seven-build beta run, all of it widening the agent surface it opened in 3.8.0

◆ Current state

SiYuan has just cut 3.8.1 stable, the endpoint of a beta chain that ran six builds in five days. The release groups into three areas: AI integration work - custom editor actions syncing across devices, an Agent panel shortcut, user-level skills read from a shared agents directory, nested rerank API formats and OpenAI Responses API support; editing and database throughput, including virtualised grouped-table rendering and faster document loading; and cross-platform reliability covering HEIF/HEIC previews, PDF export and mobile behaviour. A batch of MCP and publishing-service fixes rounds it out.

◆ Where it's heading

This is consolidation of the surface 3.8.0 opened, not an extension of it. The agent, semantic search and MCP endpoint arrived in the 3.8.0 line; 3.8.1 makes them portable and pluggable - skills come from a directory the user controls, editor actions follow the user between devices, and the provider layer now speaks the OpenAI Responses API rather than one bespoke shape. The high beta count against a modest final diff shows a project stabilising a young subsystem rather than building a new one.

◆ Prediction

The next line most likely pushes on the skills directory - discovery, sharing or marketplace distribution of user-level skills - since that is the piece 3.8.1 made user-editable without giving it a distribution path.

Alternatives to noVNC 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 noVNC or SiYuan.

See all noVNC alternatives → · See all SiYuan alternatives →

Recent activity from noVNC and SiYuan

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1d agoSiYuanSiYuan 3.8.1 stabilises the agent, skills and Responses API work
  2. 2d agoSiYuanSlash menu items become configurable; table column widths distribute evenly
  3. 2d agoSiYuanTable headers left-align by default; double-click closes tabs
  4. 3d agoSiYuanUser-level agent skills and virtualized grouped-table rendering
  5. 3d agoSiYuanAI features move to the OpenAI Responses API
  6. 4d agoSiYuanAgent panel gains a shortcut; blockquote input fixed
  7. 3mo agonoVNC1.7.0 adds translations and a tab-close warning
  8. 9mo agonoVNC1.7.0 beta, identical notes to the final
  9. 1y agonoVNC1.6.0 beta, published alongside the final
  10. 1y agonoVNC1.6.0 brings declarative config and faster resize
  11. 2y agonoVNCTight gradient encoding and lock key syncing
  12. 2y agonoVNC1.5.0 beta, same notes as the final

Frequently asked questions

What is the difference between noVNC and SiYuan?

They serve adjacent needs but don't currently overlap on shipped themes. SiYuan is currently shipping more aggressively (velocity 6.3 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 noVNC better than SiYuan?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. SiYuan is currently shipping more aggressively (velocity 6.3 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 noVNC?

Top noVNC alternatives in Collab are ranked by recent ship velocity. Browse the "noVNC alternatives" section above for the current picks, or visit /alternatives/novnc 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.