Astah ProfessionalChange 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
Diagram AI is a browser-based diagramming application that turns natural-language prompts into editable diagrams. Users can create flowcharts, sequence diagrams, cloud architecture maps, class diagrams and runbooks, then revise labels, hierarchy and layout in an interactive canvas or prompt the AI to restructure a draft. The editor accepts PDFs, images and text as context, supports automatic layout adjustments, and keeps version history that can be restored. Diagrams can be exported as XML, SVG or PNG for documentation and presentations. The free plan includes one use per day and excludes file uploads. Pro and Plus plans add monthly credits and contextual file uploads, with higher credit allowances on Plus. The service is intended for product, engineering and operations teams documenting workflows, systems and architecture.
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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
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not 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
Product, engineering, and operations teams, including people who create diagrams to explain workflows, processes, and technical 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 Videos |
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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
$9.90/month
The free plan costs $0/month and includes one use per day with no file uploads. Pro is $9.90/month, billed monthly, with 500 monthly credits. Plus is $19.90/month, billed monthly, with 1,500 monthly credits. Pro and Plus support image, PDF, and text uploads as context. Annual billing advertises 40% savings.
Free Version
Supported
Free Trial
Not 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
Not Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationChange Vision, Inc.
Founded: 2006
Tokyo, Japan
astah.net/products/astah-professional/
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Company InformationDiagram AI
aidiagram.net
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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
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
Not Supported
Microsoft 365
Not Supported
Microsoft Excel
Not Supported
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