Astah Professional

Astah Professional

Change Vision, Inc.
Astah System Safety

Astah System Safety

Change Vision, Inc.
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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).

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.

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

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

Audience

Software architects, developers, and development teams

Audience

Safety engineers and systems engineers in automotive, aerospace, and embedded systems

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

Screenshots and Videos

No images available

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

Pricing

$550 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

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

Training

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

Company Information

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

Company Information

Change Vision, Inc.
Founded: 2006
Japan
astah.net/products/astah-system-safety/

Alternatives

Astah UML

Astah UML

Change Vision, Inc.

Alternatives

Astah SysML

Astah SysML

Change Vision, Inc.
Lucidchart

Lucidchart

Lucid Software
SysMLv2 Editor

SysMLv2 Editor

Change Vision, Inc.
Astah UML

Astah UML

Change Vision, Inc.
Flowdia

Flowdia

BEZAPPS
Astah Professional

Astah Professional

Change Vision, Inc.
Microsoft Visio

Microsoft Visio

Microsoft
Cameo Systems Modeler

Cameo Systems Modeler

Dassault Systèmes

Categories

Diagram Supported
Flowchart Supported
Mind Mapping Supported
Process Mapping Supported

Categories

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

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
OpenAI Supported
PHP Supported
Redmine Supported

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
OpenAI Not Supported
PHP Not Supported
Redmine Not Supported
Claim Astah Professional and update features and information
Claim Astah Professional and update features and information
Claim Astah System Safety and update features and information
Claim Astah System Safety and update features and information