SysMLv2 Editor

SysMLv2 Editor

Change Vision, Inc.
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About

Notula is a free WYSIWYG Markdown editor for the docs as code already in your git repository. It opens the repo as a tree of documents and edits them with no syntax on screen - no hashes, no asterisks, no table pipes, not even on the line the cursor is on - then adds the review layer a code editor has no answer for: comment on a passage, reply, mention someone, suggest an edit, resolve. A mention arrives as a notification and waits in an inbox. Threads are committed beside the document as plain files. Nothing is written into the Markdown, and a one-word edit stays a one-word diff. Tables are edited as tables and Mermaid blocks are drawn as diagrams. It drives the git already on the machine, and never rewrites history, stages the whole worktree or switches a branch. Free, no account, no server. macOS and Windows, no Linux build yet. The source is closed and the builds are not code-signed yet, so the first launch takes one extra step.

About

SysMLv2 Editor is a Visual Studio Code extension for writing SysML v2 models in the textual notation, developed by Change Vision, Inc. Models are plain .sysml files, so they can be tracked in Git, compared in pull requests, and reviewed alongside source code. Features include syntax highlighting, real-time validation against the SysML v2 grammar, navigate to definition, an outline view, and diagram generation for reviewing structure and behavior. Diagrams are read-only; editing happens in the text. For editing directly on diagrams, Change Vision offers SysMLv2 Modeler (early access). SysMLv2 Editor runs on Windows, macOS, and Linux. It is included with an Astah SysML, Astah System Safety, or Astah Faculty Site License, with no separate purchase, and a 20-day free trial is available. It does not import SysML v1 models from Astah SysML.

Platforms Supported

Windows Supported
Mac Supported
Linux Not Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Technical writers, product managers, support leads and engineering teams whose documentation lives in a git repository - including the people on the team who do not use git.

Audience

Systems engineers and teams who write SysML v2 models as text in Visual Studio Code and manage them in Git

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

No images available

Screenshots and Videos

No images available

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

$140 per year
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Notula
Founded: 2026
notula.org

Company Information

Change Vision, Inc.
Founded: 2006
Japan
astah.net/products/sysmlv2-editor/

Alternatives

Alternatives

Astah SysML

Astah SysML

Change Vision, Inc.
Astah System Safety

Astah System Safety

Change Vision, Inc.
Syndeia

Syndeia

Intercax
Astah Professional

Astah Professional

Change Vision, Inc.
Astah UML

Astah UML

Change Vision, Inc.

Categories

Markdown Editors Supported

Categories

Integrations

Visual Studio Code Not Supported

Integrations

Visual Studio Code Supported
Claim Notula and update features and information
Claim Notula and update features and information
Claim SysMLv2 Editor and update features and information
Claim SysMLv2 Editor and update features and information