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What is SysMLv2 Editor?

The SysMLv2 Editor is a Visual Studio Code extension that facilitates the creation of SysML v2 models in a text-based format, developed by Change Vision, Inc. These models are stored as standard .sysml files, which can be effectively managed within Git repositories, compared during pull requests, and assessed alongside other source code elements. Key features include syntax highlighting, real-time validation in accordance with the SysML v2 grammar, navigation to definitions, an outline view, and the ability to generate diagrams that analyze both structural and behavioral aspects of models. Although the provided diagrams are read-only, allowing for text editing, Change Vision also has an early access version of the SysMLv2 Modeler that permits direct manipulation of diagrams. This editor is compatible with Windows, macOS, and Linux platforms, and users can utilize it through Astah SysML, Astah System Safety, or Astah Faculty Site Licenses without further financial commitment, with a complimentary 20-day trial also available. It is important to mention that the editor does not allow the import of SysML v1 models from Astah SysML, which helps maintain a clear differentiation between SysML versions. By concentrating on SysML v2, the tool aims to offer an enhanced user experience, featuring advanced functionalities and a contemporary approach to modeling, ultimately fostering a more efficient workflow for developers and modelers alike.

What is Astah UML?

Astah UML is a desktop UML 2.x modeling application from Change Vision, Inc. It is designed for development teams, universities, and individual engineers who need standard UML diagrams without the complexity of a full systems-engineering suite. Because designs are stored as models, an update made in one place carries through to every related diagram, which keeps design documentation consistent as a project grows. Version 12.0, released in July 2026, brings AI into UML modeling. AI Chat Copilot and AI-assisted code reverse engineering run on your organization's own API key for OpenAI, Azure OpenAI, Claude, or Gemini, or for an OpenAI-compatible service. Local MCP server integration lets AI agents connect to Astah models. Plans start at $6.99 per month. A free license is available for students, and a 20-day free trial is offered. Astah UML runs on Windows, macOS, and Linux without a separate Java installation.

Media

No images available

Media

Integrations Supported

Visual Studio Code

Integrations Supported

Azure OpenAI Service
Claude
Gemini
HTML
Java
OpenAI
Redmine

API Availability

API Availability

Has API

Pricing Information

$140 per year
Free Trial Offered?

Pricing Information

$6.99 per month
Plans from $6.99 per month. Free license for students. 20-day free trial.
Free Trial Offered?

Supported Platforms

Windows
Mac
On-Prem
Linux

Supported Platforms

Windows
Mac
On-Prem
Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Not specified

Training Options

Documentation Hub

Company Facts

Organization Name

Change Vision, Inc.

Date Founded

2006

Company Location

Japan

Company Website

astah.net/products/sysmlv2-editor/

Company Facts

Organization Name

Change Vision, Inc.

Date Founded

2006

Company Location

Japan

Company Website

astah.net/products/astah-uml/

Categories and Features

Categories and Features

Diagram

Data Import / Export
Drag & Drop
For Developers
Mind Map
Templates

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