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Comparison · Collab
Circle vs Trilium Notes
A side-by-side editorial comparison of Circle and Trilium Notes — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:mcp
Circle vs Trilium Notes: at a glance
What is Circle?
Circle rebuilt itself around an AI that runs the community, and now builds its landing pages too.
Circle ships a dated monthly release covering web, iOS, Android and its branded-app product, and the last six months have all pointed one direction. Circle Eclipse, announced in June and opened to every customer in late July, re-skinned both member and admin surfaces and brought an AI layer with memory, roughly fifty domain-specific skills and project workspaces. August extends that AI outward: it now builds complete pages from a prompt or an existing URL — homepages, sales pages, event pages in the operator's brand — generating copy and images and running SEO audits inside the builder. The rest of the release is retention plumbing: a Get Started onboarding checklist on web and mobile, live emoji reactions in chats and rooms, customizable member directory filters, and native mobile video recording.
What is Trilium Notes?
Trilium spent a year adding what notes can hold; now it is fixing what happens to them.
Trilium Notes is a self-hosted hierarchical note application with an unusually broad content model — text, code, canvases, mind maps, and since 0.103.0 spreadsheets with formulas and OCR-extracted text from images, PDFs and Office files. Releases are large, quarterly, and explicit about breakage. The current release turns that attention inward: the database itself becomes something you can measure, clean, repair, and restore.
Circle vs Trilium Notes: editorial side-by-side
Circle
6.3COLLAB
Circle rebuilt itself around an AI that runs the community, and now builds its landing pages too.
◆ Current state
Circle ships a dated monthly release covering web, iOS, Android and its branded-app product, and the last six months have all pointed one direction. Circle Eclipse, announced in June and opened to every customer in late July, re-skinned both member and admin surfaces and brought an AI layer with memory, roughly fifty domain-specific skills and project workspaces. August extends that AI outward: it now builds complete pages from a prompt or an existing URL — homepages, sales pages, event pages in the operator's brand — generating copy and images and running SEO audits inside the builder. The rest of the release is retention plumbing: a Get Started onboarding checklist on web and mobile, live emoji reactions in chats and rooms, customizable member directory filters, and native mobile video recording.
◆ Where it's heading
The community platform keeps being reframed as a business-operations platform: Discover 2.0 supplies member demand, Circle AI does the structuring work, Circle Studios sells the operating labor outright. The page builder fills the one gap in that loop — the acquisition surface an operator previously built somewhere else — and shipping SEO audits with it says Circle intends to own how communities get found, not just how they run. Circle MCP in April remains the tell that the operator was always expected to be an agent. Underneath, the retention items this month are the unglamorous half of the same funnel argument.
◆ Prediction
The fifty Circle AI skills are the surface most likely to open next, either to operator-authored skills or to skills invoked through Circle MCP rather than only in the Circle UI. Expect page building and Discover to connect, so a generated sales page feeds the marketplace listing directly.
Trilium Notes
6.3COLLAB
Trilium spent a year adding what notes can hold; now it is fixing what happens to them.
◆ Current state
Trilium Notes is a self-hosted hierarchical note application with an unusually broad content model — text, code, canvases, mind maps, and since 0.103.0 spreadsheets with formulas and OCR-extracted text from images, PDFs and Office files. Releases are large, quarterly, and explicit about breakage. The current release turns that attention inward: the database itself becomes something you can measure, clean, repair, and restore.
◆ Where it's heading
Two arcs run in parallel. One expands what a note can be, peaking with the spreadsheet note type and OCR that feeds extracted text into search. The other is about trust in the thing holding your knowledge base — a coordinated security release in April, then 0.105.0 shipping backup restore, a cleanup tool that honours versioning limits, compaction, integrity repair, and a space-usage treemap. The AI layer is being made self-hostable in the same spirit, moving from a fixed vendor model list to dynamic retrieval plus Ollama, LM Studio and any OpenAI-compatible provider. Breaking changes are frequent and documented up front rather than smuggled in.
◆ Prediction
The two features the maintainer explicitly links to funding — an official mobile application and multi-user support — are the stated backlog; nearer term, expect the spreadsheet note type to leave beta and the newly networked MCP interface to gain more surface.
Alternatives to Circle and Trilium Notes
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 Circle or Trilium Notes.
Slack
Slack is building a place for agents to work, not just answer.
Double
Double moves Ask Double from a chat box to agents that run on a schedule.
Guru
Guru is tightening the leash on the Knowledge Agent it just handed the keys to.
SiYuan
SiYuan opens 3.8.2 by decoupling agent sessions and opening the plugin event bus
EGroupware
EGroupware closes 23.1 for good and puts S/MIME key handling inside the mail client.
See all Circle alternatives → · See all Trilium Notes alternatives →
Recent activity from Circle and Trilium Notes
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 5d agoCircleAugust release: AI website builder, live reactions, and more
- 5d agoTrilium NotesBackups become restorable and the database becomes manageable ⚡
- 27d agoCircleCircle Eclipse is available to everyone ⚡
- 1mo agoTrilium NotesLLM providers become dynamic and self-hostable; OneNote import hardened
- 1mo agoTrilium NotesRelease-preparation tag for v0.104.0
- 2mo agoCircleCircle Eclipse 2026: Introducing Circle AI, Discover, Studios, and more ⚡
- 3mo agoCircle📲 May release: Public webinars, new custom app builder templates, and more
- 3mo agoTrilium NotesSpreadsheet notes and OCR-backed search arrive ⚡
- 4mo agoCircle🔗 April release: Circle MCP, AI agent upgrades, and more ⚡
- 4mo agoTrilium NotesCoordinated security release across content handling and the desktop app
- 5mo agoCircle🗺️ March release: Member map, video recorder, and more
- 5mo agoTrilium NotesHotfix for mind map rendering and PDF viewer regressions
Frequently asked questions
What is the difference between Circle and Trilium Notes?
Both compete on the same themes — mcp — within Collab. Circle and Trilium Notes 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 Circle better than Trilium Notes?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Circle and Trilium Notes 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 Circle?
Top Circle alternatives in Collab are ranked by recent ship velocity. Browse the "Circle alternatives" section above for the current picks, or visit /alternatives/circle for the full list with editorial commentary on each.
What are the best alternatives to Trilium Notes?
Top Trilium Notes alternatives in Collab are ranked by recent ship velocity. Browse the "Trilium Notes alternatives" section above for the current picks, or visit /alternatives/trilium for the full list with editorial commentary on each.