SiYuan
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Comparison · Collab
Capacities vs Wiki.js
A side-by-side editorial comparison of Capacities and Wiki.js — release velocity, themes, recent moves, and the top alternatives to consider.
Capacities vs Wiki.js: at a glance
What is Capacities?
Capacities ships API 2.0, pivoting from self-contained PKM toward a connected AI memory layer
Capacities is a structured personal knowledge management tool shipping at monthly cadence. In the past 4 months it has added AI Chat Connectors (connecting the space to ChatGPT, Claude, and Cursor), a developer-facing API 2.0, weblink reader and analysis, PDF annotations, AI image generation, and configurable AI model providers. The combination describes a product moving from self-contained PKM to a node in a broader AI-augmented knowledge graph.
What is Wiki.js?
Wiki.js 3.0 beta adds math, personal access tokens and nav automations; Postgres 17 now required.
Wiki.js runs two tracks: 2.x stable, which now gets only security patches, and a 3.0 beta still labeled 'not for production'. Over the past month the beta added Excalidraw live collaboration, SCIM provisioning, notifications, annotations, a glossary, draft recovery and multi-replica git sync. The newest beta adds inline KaTeX/MathJax math, personal access tokens, navigation-menu automations and search suggestions, and raises the minimum database to PostgreSQL 17.
Capacities vs Wiki.js: editorial side-by-side
Capacities
5.0COLLAB
Capacities ships API 2.0, pivoting from self-contained PKM toward a connected AI memory layer
◆ Current state
Capacities is a structured personal knowledge management tool shipping at monthly cadence. In the past 4 months it has added AI Chat Connectors (connecting the space to ChatGPT, Claude, and Cursor), a developer-facing API 2.0, weblink reader and analysis, PDF annotations, AI image generation, and configurable AI model providers. The combination describes a product moving from self-contained PKM to a node in a broader AI-augmented knowledge graph.
◆ Where it's heading
The consistent direction is making Capacities connectable — first via AI chat integrations, then a proper developer API, and now deeper object types and AI media generation. The new Pro+/Believer+ pricing add-ons indicate AI usage is growing enough to require metered capacity. The platform is accumulating capability surface faster than a traditional note-taking tool and faster than comparable PKM competitors.
◆ Prediction
The most likely next move is deeper API-to-AI-connector integration, letting third-party agents create and modify Capacities objects programmatically — the existing connector work is the precondition for functioning as an AI memory layer rather than just a note store.
Wiki.js
6.3COLLAB
Wiki.js 3.0 beta adds math, personal access tokens and nav automations; Postgres 17 now required.
◆ Current state
Wiki.js runs two tracks: 2.x stable, which now gets only security patches, and a 3.0 beta still labeled 'not for production'. Over the past month the beta added Excalidraw live collaboration, SCIM provisioning, notifications, annotations, a glossary, draft recovery and multi-replica git sync. The newest beta adds inline KaTeX/MathJax math, personal access tokens, navigation-menu automations and search suggestions, and raises the minimum database to PostgreSQL 17.
◆ Where it's heading
Headline features are in place, and recent betas fill out editor ergonomics, identity and API plumbing, and operational safety rather than adding new editors. Personal access tokens and API keys bound to page rules extend the access model to automation clients, and the Postgres 17 floor shows the team is still willing to set hard infrastructure requirements before 3.0 locks.
◆ Prediction
More betas pairing editor and admin polish with API, multi-node and v2-import fixes are the likely next step. The entries still give no date for 3.0 dropping its beta label.
Alternatives to Capacities and Wiki.js
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 Capacities or Wiki.js.
GitHub
GitHub makes open source license compliance a ruleset-enforced GA for Enterprise Cloud.
Hive
Hive makes its AI proofer a named approver and lets workflow buttons open prefilled Forms.
Teable
Teable ships an official MCP server, letting coding agents work its tables via OAuth.
Wiki.js
Wiki.js 3 beta.672 adds inline math and personal access tokens, and raises the floor to Postgres 17.
Skedda
Skedda Companion can now be pushed to every laptop through MDM for full presence data.
See all Capacities alternatives → · See all Wiki.js alternatives →
Recent activity from Capacities and Wiki.js
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoWiki.jsWiki.js 3 beta adds math, access tokens; requires Postgres 17
- 4d agoWiki.jsWiki.js 3 beta adds draft recovery, slash menu, multi-replica git sync
- 6d agoWiki.js3.0 beta adds OIDC/SAML claim options and hardens v2 import
- 8d agoWiki.jsWiki.js 3.0 beta adds glossary auto-linking and non-Latin paths
- 13d agoWiki.jsWiki.js 3 beta adds inline annotations and translation completeness
- 15d agoWiki.jsWiki.js 3 beta adds notifications, RTL support, and broken-link detection
- 1mo agoCapacitiesRecent continuous improvements
- 1mo agoCapacitiesPDF reader view and annotations for Believers, Version History, more calendars, and AI image generation
- 2mo agoCapacitiesCapacities Pro+ and Believer+
- 2mo agoCapacitiesRecent continuous improvements — polish and reliability
- 3mo agoCapacitiesCapacities API 2.0, Weblink Analysis, and Presentation Mode ⚡
- 3mo agoCapacitiesAI Chat Connectors 2.0 + Many improvements
Frequently asked questions
What is the difference between Capacities and Wiki.js?
They serve adjacent needs but don't currently overlap on shipped themes. Wiki.js is currently shipping more aggressively (velocity 6.3 vs 5.0), 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 Capacities better than Wiki.js?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Wiki.js is currently shipping more aggressively (velocity 6.3 vs 5.0), 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 Capacities?
Top Capacities alternatives in Collab are ranked by recent ship velocity. Browse the "Capacities alternatives" section above for the current picks, or visit /alternatives/capacities for the full list with editorial commentary on each.
What are the best alternatives to Wiki.js?
Top Wiki.js alternatives in Collab are ranked by recent ship velocity. Browse the "Wiki.js alternatives" section above for the current picks, or visit /alternatives/wikijs for the full list with editorial commentary on each.