Astah ProfessionalChange Vision, Inc.
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Astah System SafetyChange Vision, Inc.
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Related Products
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About
Astah Professional is an all-in-one modeling tool for software and system design, developed by Change Vision, Inc. It supports UML 2.x, ER diagrams, data flow diagrams (DFD), flowcharts, requirement diagrams, CRUD, and mind maps in a single tool.
Unlike drawing tools, Astah creates models: a change to a model element is reflected in every diagram that uses it, so your diagrams stay consistent.
AI features include AI Chat Copilot and AI-assisted code reverse engineering, which use your own API key for OpenAI, Azure OpenAI, Claude, Gemini, or an OpenAI-compatible service. A local MCP server lets external AI agents work with your Astah models. Conventional reverse engineering of Java, C#, and C++ code is also included.
Astah Professional is a desktop application for Windows, macOS, and Linux, with a bundled Java runtime, so no separate Java installation is required. A 20-day free trial is available.
Latest version: 12.0 (released July 15, 2026).
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About
Astah System Safety is a model-based safety analysis tool for safety-critical systems, developed by Change Vision, Inc. It combines SysML modeling with STAMP/STPA hazard analysis, GSN (Goal Structuring Notation) assurance cases, ASAM SCDL, and UAF in one tool.
Safety analyses are linked to the system model, so control structures, hazards, and safety arguments stay traceable to requirements and architecture. It is used by safety engineers in automotive, aerospace, and embedded systems, including safety-case work for standards such as ISO 26262.
AI Chat Copilot works with your own API key for OpenAI, Azure OpenAI, Claude, Gemini, or an OpenAI-compatible service, and a local MCP server connects external AI agents to your models. Models can be exchanged through XMI and with Cameo Systems Modeler.
Astah System Safety runs on Windows and macOS. FTA and FMEA are not included. A 40-day free trial is available.
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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
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Platforms Supported
Windows
Supported
Mac
Supported
Linux
Not Supported
Cloud
Not Supported
On-Premises
Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Software architects, developers, and development teams
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Audience
Safety engineers and systems engineers in automotive, aerospace, and embedded systems
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Not Supported
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Screenshots and Videos |
Screenshots and VideosNo images available
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Pricing
$11.99 per month
Available from $11.99 per month.
Monthly, annual, or perpetual licenses. 20-day free trial.
Free Version
Not Supported
Free Trial
Supported
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Pricing
$550 per year
Free Version
Not Supported
Free Trial
Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationChange Vision, Inc.
Founded: 2006
Japan
astah.net/products/astah-professional/
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Company InformationChange Vision, Inc.
Founded: 2006
Japan
astah.net/products/astah-system-safety/
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Alternatives |
Alternatives |
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Categories |
Categories |
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Diagram Features
Data Import / Export
Supported
Drag & Drop
Supported
Flowchart
Supported
For Developers
Supported
Mind Map
Supported
Multi-User Collaboration
Supported
Organizational Charting
Not Supported
Templates
Supported
Flowchart Features
Collaboration
Not Supported
Diagramming
Supported
Drag & Drop
Supported
Organizational Charting
Not Supported
Process Mapping
Not Supported
Revision Management
Not Supported
Templates
Supported
Text to Chart
Supported
Mind Mapping Features
Brainstorming
Supported
Flowchart
Supported
Presentation Tools
Not Supported
Project Planning
Supported
Publishing / Sharing
Not Supported
Templates
Supported
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Integrations
Azure OpenAI Service
Supported
C#
Supported
C++
Supported
Claude
Supported
Gemini
Supported
HTML
Supported
Java
Supported
Mermaid Chart
Supported
Microsoft 365
Supported
Microsoft Excel
Supported
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Integrations
Azure OpenAI Service
Not Supported
C#
Not Supported
C++
Not Supported
Claude
Not Supported
Gemini
Not Supported
HTML
Not Supported
Java
Not Supported
Mermaid Chart
Not Supported
Microsoft 365
Not Supported
Microsoft Excel
Not Supported
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