Astah UML Description

Astah UML gives software teams and students a focused tool for UML 2.x modeling. Class, use case, sequence, activity, state machine, component, and deployment diagrams are all available, together with mind maps for early brainstorming.

Every diagram is a view of a shared model, so renaming a class or changing a relationship updates it everywhere it appears.

For AI-assisted work, Astah UML offers AI Chat Copilot and AI-assisted code reverse engineering, both of which connect to OpenAI, Azure OpenAI, Claude, Gemini, or any OpenAI-compatible endpoint through your own API key. A local MCP server lets external AI agents read and work with your models, and conventional reverse engineering turns existing Java, C#, and C++ code into diagrams without an AI service.

Astah UML runs locally on Windows, macOS, and Linux.
Developer: Change Vision, Inc.
Current version: 12.0 (July 2026).
Students can use it free of charge, and a 20-day trial is available for everyone else.

Pricing

Pricing Starts At:
$6.99 per month
Pricing Information:
Plans from $6.99 per month. Free license for students. 20-day free trial.
Free Trial:
Yes

Integrations

API:
Yes, Astah UML has an API

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Company Details

Company:
Change Vision, Inc.
Year Founded:
2006
Headquarters:
Tokyo, Japan
Website:
astah.net/products/astah-uml/
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Product Details

Platforms
Windows
Mac
Linux
On-Premises
Types of Training
Training Docs
Training Videos
Customer Support
Online Support

Astah UML Features and Options

Diagram Software

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

Astah UML Lists

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