● Version 4.0 available · release notes →

Your model,
inside and out.

Explore, check and review an MBSE model in Capella / ARCADIA — or SysML v2 — right in your browser. A single HTML file: no installation, no server, works offline.

⬇ Download Arcalyse ▶ See the demo

≈ 3 MB · recent Chrome, Edge, Firefox · Windows, macOS, Linux · open source (Apache 2.0)

More formats coming: SysML v1, UML, ReqIF →

Arcalyse showing the [SAB] High Level System Overview diagram of the public IFE model, with the per-layer diagram explorer

Functional chain Watch Imposed Video on Cabin Screen unfolded: its seven functions and exchanges, step by step

Functional exchanges: each function with its input and output ports and the exchanges linking them

Components and interfaces of the physical layer: component ports and exchanges between Media Server, Streaming Server and the interaction managers

Relation Map: the graph of the model's relations, filtered by layer

Review: comments on elements and diagrams, re-checked at every version

Nothing is sentThe model is read on your computer, never transmitted.

OfflineWorks without a network, even on an air-gapped one.

A single fileNo installation, no administrator rights.

Open sourceApache License 2.0, source code on GitHub.

How it works

Three steps, that's all

No account, no server to deploy: Arcalyse reads the .capella file directly and, if you provide it, the .aird file with the diagrams.

Download the file

In English, in French or bilingual. Copy it wherever you like: local disk, network share, USB stick.

Open it

A double-click is enough: it opens in your browser, even without a connection.

Drop your model

The .capella file or the whole project folder: model, diagrams and libraries in one go.

The five ARCADIA layers

From operational analysis to EPBS, the whole model at a glance

Arcalyse unfolds the model layer by layer and follows realizations from one to the next: a system function down to its physical component, a functional chain down to its exchanges.

See the views ↓

OAOperational Analysisactivities, entities, operational capabilities

SASystem Analysisfunctions, exchanges, missions, capabilities

LALogical Architecturecomponents, ports, functional chains

PAPhysical Architecturenodes, behaviours, physical links, deployment

EPBSProduct Breakdownconfiguration items and their realizations

The views

Understand, check, review

The views follow Capella's logic and go further: everything is linked, clickable and exportable (CSV, Excel, PNG, SVG, PDF, HTML). Screenshots show the French interface.

🔲 Capella diagrams: the .aird drawn as in Capella.

Download

Arcalyse 4.0

Choose the interface language; all three versions offer the same features.

⬇ Download Checksums and versions

arcalyse-en.html · 3.3 MB

# or from source git clone https://github.com/romain-lescole/Arcalyse cd Arcalyse && node build.js ✔ dist/arcalyse-en.html

Source code on GitHub →User guide (French) →

Your ideas

Suggest an improvement

Arcalyse grows with its users. An idea, a gap, a bug: say so on GitHub, in English or in French. A free GitHub account is enough; every request is public and tracked until it ships.

An idea

A missing view, a check to add, an export… Describe the need, even in two lines: the form is pre-filled.

Suggest an improvement →

A problem

A model that will not open, a badly drawn diagram: give the Arcalyse and Capella versions, and what you expected.

Report a problem →

A question

About usage, enterprise deployment or the roadmap. The answer will help the next person.

Ask a question →

Prefer code? The repository accepts pull requests: github.com/romain-lescole/Arcalyse. Do not attach a confidential model to an issue: an anonymised excerpt or a description is enough.

Frequently asked questions

Good to know

Is my model sent anywhere?

No. The HTML file contacts no server: the model is read in memory by your browser. You can check this by disconnecting from the network. The same holds for “Try it online”: the page is served by the website, but your model stays in your browser.

Can I try it without a model?

Yes: the online demo opens Arcalyse already loaded with the public In-Flight Entertainment System model and its 119 diagrams. Loading takes a few seconds (about 3 MB). For your own models, open an empty Arcalyse and drop your file into it. Sample model: © The Capella contributors, Eclipse Public License 2.0.

Which files can I open?

A .capella file (or .melodymodeller, .xml), the whole project folder (model, .aird diagrams and libraries), a SysML v2 model (.sysml, .kpar archive or folder of .sysml files), or a project page .html saved by Arcalyse. Coming soon: SysML v1 (versions 1.0 to 1.7), UML and ReqIF, then more formats.

Do I need Capella on my computer?

No. Arcalyse reads the XML of the model and of the .aird; diagrams are redrawn in the browser. The Capella version of the model is shown on the project home page.

Can I edit the model?

Arcalyse is read-only. Editing will be the job of Arcature, the editing tool for Capella and SysML v2 files, currently being finalized.

How do I keep my work (review, documents, settings)?

Save the 💾 project page: it contains the model and your work, and reopens in later versions of Arcalyse (since 2.1), with everything restored.

How do I deploy it in my company?

Put the HTML file on a network share or an intranet: there is nothing else to install. Check its SHA-256 checksum on the Download page.

How do I suggest an improvement or report a problem?

On GitHub, from the Suggest an improvement section: three pre-filled forms (idea, problem, question). A free GitHub account is enough; English and French are both fine.

Coming soon: more formats

Arcalyse will also read SysML v1 (versions 1.0 to 1.7) and UML models, as well as requirements in the ReqIF exchange format. More formats will follow.

SysML v1.0 to 1.7UMLReqIF…

Coming soon: Arcature

The editing tool for Capella and SysML v2 files, Arcalyse's companion, is being finalized.

Your model,inside and out.