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Comparison · Collab

Komga vs SiYuan

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

Shared themes:self-hosted

Komga vs SiYuan: at a glance

FeatureKomgaSiYuan
SectorCollabCollab
Velocity score6.36.3
Sparks · 30d01
Top themesself-hosted, frontend-rewrite, comics-manga, archive-formatslocal-first, knowledge-management, ai-agent, self-hosted
Last editorial update1mo ago5h ago
WebsiteVisit →Visit →

What is Komga?

Komga is rewriting its web UI in the open, shipping the beta alongside the old one.

Komga's release cadence is dominated by NextUI, a ground-up rewrite of the web interface that landed in beta with 1.26.0 and is served next to the existing UI at /next rather than replacing it. The three patch releases that followed within 48 hours were almost entirely NextUI shakedown work — scroll restoration, selection behavior, stylesheets failing to load under Tomcat. Underneath the interface work the server keeps widening format support, with rar5 handling in plain Java and solid rar4 archives earlier in the summer.

Read the full Komga trajectory →

What is SiYuan?

SiYuan v3.8.4 beta cycle adds agent-controlled database fields, MiniMax image gen, and skill file management

SiYuan is deep in the v3.8.4 pre-release cycle, now at beta.4, shipping a dense stream of enhancements across each daily build. The defining theme of this release cycle is agent-control expansion: the AI can now configure database fields, manage skill files, stream Markdown previews, and use custom AI provider headers — moving SiYuan from a tool where AI assists with writing to one where AI can reshape the workspace structure itself. Mobile UX and PDF annotation improvements are running in parallel.

Read the full SiYuan trajectory →

Komga vs SiYuan: editorial side-by-side

K
Komga
COLLAB
6.3

Komga is rewriting its web UI in the open, shipping the beta alongside the old one.

◆ Current state

Komga's release cadence is dominated by NextUI, a ground-up rewrite of the web interface that landed in beta with 1.26.0 and is served next to the existing UI at /next rather than replacing it. The three patch releases that followed within 48 hours were almost entirely NextUI shakedown work — scroll restoration, selection behavior, stylesheets failing to load under Tomcat. Underneath the interface work the server keeps widening format support, with rar5 handling in plain Java and solid rar4 archives earlier in the summer.

◆ Where it's heading

The project is running a long, deliberately cautious frontend migration: both UIs ship in the same binary, the feature gap is tracked publicly in an issue, and users opt in by URL. That arrangement should persist across several minor versions before the old WebUI is retired. The parallel v2 referential API suggests the rewrite is also being used to revise the server contract rather than only restyle the client.

◆ Prediction

Near-term releases should keep closing the NextUI feature gap issue by issue, with patch releases landing within days of each other. The old WebUI is unlikely to be removed before NextUI reaches parity and browser refresh stops falling back to it.

S
SiYuan
COLLAB
6.3

SiYuan v3.8.4 beta cycle adds agent-controlled database fields, MiniMax image gen, and skill file management

◆ Current state

SiYuan is deep in the v3.8.4 pre-release cycle, now at beta.4, shipping a dense stream of enhancements across each daily build. The defining theme of this release cycle is agent-control expansion: the AI can now configure database fields, manage skill files, stream Markdown previews, and use custom AI provider headers — moving SiYuan from a tool where AI assists with writing to one where AI can reshape the workspace structure itself. Mobile UX and PDF annotation improvements are running in parallel.

◆ Where it's heading

SiYuan is building toward an agent-orchestrated personal knowledge base, where the AI layer can modify not just content but the organizational schema. The skill file management system suggests an emerging plugin-like architecture for agent behaviors. As multimodal generation (MiniMax image support) gets wired in, SiYuan's trajectory is toward a locally-run AI workspace that rivals cloud-based tools without the data-residency trade-off.

◆ Prediction

v3.8.4 stable will ship soon given the move to beta.4. The agentic features (database field configuration, skill management) will attract integrations from local-first AI workflow builders. Expect MiniMax and other provider integrations to expand in the next cycle.

Alternatives to Komga 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 Komga or SiYuan.

See all Komga alternatives → · See all SiYuan alternatives →

Recent activity from Komga and SiYuan

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

  1. 8h agoSiYuanSiYuan v3.8.4-beta.4: agent workspace control and MiniMax image generation
  2. 1d agoSiYuanSiYuan v3.8.4-beta.3: streaming agent preview and MCP SQL fix
  3. 1d agoSiYuanSiYuan v3.8.4-beta.2: Docker fonts, custom block search
  4. 2d agoSiYuanSiYuan v3.8.4-beta.1: pinnable documents, rich text tables, remote GUI
  5. 2d agoSiYuanSiYuan v3.8.4-alpha.9: Serbian language, fullscreen agent dock
  6. 3d agoSiYuanSiYuan v3.8.4-alpha.8: document pinning, sync improvements
  7. 1mo agoKomgaTranslation updates and a release tooling fix
  8. 1mo agoKomgaNextUI beta fixes: scroll, selection, and loading states
  9. 1mo agoKomgaNextUI beta: a parallel rewrite of the Komga web interface
  10. 1mo agoKomgaFix missing NextUI stylesheets when served from Tomcat
  11. 2mo agoKomgaSolid RAR4 archive support
  12. 4mo agoKomgaFixes for EPUB parsing, Kobo, KOReader, and OPDS2

Frequently asked questions

What is the difference between Komga and SiYuan?

Both compete on the same themes — self-hosted — within Collab. Komga and SiYuan are shipping at a similar cadence (velocity 6.3 vs 6.3, 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 Komga better than SiYuan?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Komga and SiYuan are shipping at a similar cadence (velocity 6.3 vs 6.3, 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 Komga?

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