Average Ratings 0 Ratings
Average Ratings 0 Ratings
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.
Description
The software is fully compatible with the UML 2.X standard metamodel, accommodating a variety of diagrams including class, object, use case, component, deployment, composite structure, sequence, communication, statechart, activity, timing, interaction overflow, information flow, and profile diagrams. In addition to UML, it also facilitates modeling with SysML diagrams such as requirement, block definition, internal block, and parametric diagrams. It is optimized for Retina (High-DPI) displays, ensuring that all diagrams, text, and icons appear exceptionally sharp and can be easily exported as High-DPI images in formats like PNG and JPEG. Users can effortlessly discover and install numerous third-party extensions, many of which are open source and available on GitHub. The tool also incorporates a range of shorthands in the Quick Edit feature, allowing for the swift creation of elements and relationships simultaneously, including sub-classes and supporting interfaces, thus enhancing overall productivity. Additionally, this versatility makes it an invaluable resource for professionals seeking comprehensive modeling capabilities.
API Access
Has API
Yes
API Access
Has API
No
Integrations
Azure OpenAI Service
Yes
Claude
Yes
Gemini
Yes
HTML
Yes
Java
Yes
OpenAI
Yes
Redmine
Yes
Integrations
Azure OpenAI Service
No
Claude
No
Gemini
No
HTML
No
Java
No
OpenAI
No
Redmine
No
Pricing Details
$6.99 per month
Plans from $6.99 per month. Free license for students. 20-day free trial.
Free Trial
Yes
Free Version
No
Pricing Details
$99 per user
Free Trial
No
Free Version
No
Deployment
Web-Based
No
On-Premises
Yes
iPhone App
No
iPad App
No
Android App
No
Windows
Yes
Mac
Yes
Linux
Yes
Chromebook
No
Deployment
Web-Based
No
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
Yes
Mac
Yes
Linux
Yes
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Vendor Details
Company Name
Change Vision, Inc.
Founded
2006
Country
Japan
Website
astah.net/products/astah-uml/
Vendor Details
Company Name
StarUML
Website
staruml.io
Product Features
Diagram
Data Import / Export
Yes
Drag & Drop
Yes
Flowchart
No
For Developers
Yes
Mind Map
Yes
Multi-User Collaboration
No
Organizational Charting
No
Templates
Yes