Astah ProfessionalChange Vision, Inc.
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Related Products
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Astah Professional:
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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PatentQuill:
About
PatentQuill is a software tool for preparing patent-application drawings from the text of a patent specification. It converts written procedures into USPTO-style black-and-white method flowcharts and turns described components and relationships into system block diagrams. Users can inspect diagram boxes and reference numerals, with each box linked to the sentence in the source specification and numerals checked against its description. A separate browser-based checker reviews finished sheets against the formatting requirements of 37 CFR 1.84. The workflow is intended for patent attorneys, patent agents and inventors assembling drawings for USPTO applications. PatentQuill supports diagram preparation and checking; it does not replace professional review or provide legal advice.
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Astah Professional:
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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PatentQuill:
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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Astah Professional:
Audience
Software architects, developers, and development teams
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PatentQuill:
Audience
Patent attorneys, patent agents, and inventors preparing USPTO applications.
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Astah Professional:
Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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PatentQuill:
Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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Astah Professional:
API
Offers API
Not Supported
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PatentQuill:
API
Offers API
Not Supported
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Astah Professional:
Screenshots and Videos |
PatentQuill:
Screenshots and VideosNo images available
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Astah Professional:
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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PatentQuill:
Pricing
$0
The free tier includes watermarked exports and does not require a credit card.
Free Version
Supported
Free Trial
Not Supported
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Astah Professional:
Reviews/
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PatentQuill:
Reviews/
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Astah Professional:
Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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PatentQuill:
Training
Documentation
Not Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Astah Professional:
Company InformationChange Vision, Inc.
Founded: 2006
Tokyo, Japan
astah.net/products/astah-professional/
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PatentQuill:
Company InformationPatentQuill
Founded: 2026
patentquill.com
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Astah Professional:
Alternatives |
PatentQuill:
Alternatives |
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PatentQuill:
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PatentQuill:
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Astah Professional:
Categories |
PatentQuill:
Categories |
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Astah Professional:
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
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
Mind Mapping Features
Brainstorming
Supported
Flowchart
Supported
Presentation Tools
Not Supported
Project Planning
Supported
Publishing / Sharing
Not Supported
Templates
Supported
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Astah Professional:
Integrations
Azure OpenAI Service
Supported
C#
Supported
C++
Supported
Claude
Supported
Claude Duet
Supported
Claude for Legal
Supported
Gemini
Supported
HTML
Supported
Java
Supported
Mermaid
Supported
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PatentQuill:
Integrations
Azure OpenAI Service
Not Supported
C#
Not Supported
C++
Not Supported
Claude
Not Supported
Claude Duet
Not Supported
Claude for Legal
Not Supported
Gemini
Not Supported
HTML
Not Supported
Java
Not Supported
Mermaid
Not Supported
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Astah Professional:
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PatentQuill:
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