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Average Ratings 0 Ratings

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ease
features
design
support

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Description

Keep your preferred diagram views and UML tools easily accessible to enhance your efficiency and productivity. The UML diagrams you generate with UModel offer complete customization in aspects such as size, position, color, typeface attributes, and line styles. Use case diagrams are frequently treated as distinct from other software architecture diagrams, as they effectively capture project requirements and help outline the scope of an application being developed. It is uncommon for a project to employ every type of UML diagram, as software modeling encourages a variety of preferences and styles, with different tasks necessitating various diagram formats. No matter which diagrams you choose to create, UModel delivers an unparalleled visual interface and user-friendly features, making UML modeling both simple and enjoyable. Each specific diagram type is equipped with its own dedicated toolbar, ensuring that the workspace remains uncluttered by unrelated icons. Additionally, you have the option to toggle toolbar text labels on or off and can choose to display or conceal any toolbar as needed, giving you greater control over your workspace. This flexibility allows you to focus on your modeling tasks without distraction.

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.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

Azure OpenAI Service No 
Claude No 
Gemini No 
HTML No 
Java No 
OpenAI No 
Redmine No 

Integrations

Azure OpenAI Service Yes 
Claude Yes 
Gemini Yes 
HTML Yes 
Java Yes 
OpenAI Yes 
Redmine Yes 

Pricing Details

€129 one-time payment
Free Trial No 
Free Version 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 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook 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 

Customer Support

Business Hours Yes 
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

Altova

Founded

1992

Country

United States

Website

shop.altova.com/UModel

Vendor Details

Company Name

Change Vision, Inc.

Founded

2006

Country

Japan

Website

astah.net/products/astah-uml/

Product Features

Application Development

Access Controls/Permissions No 
Code Assistance No 
Code Refactoring No 
Collaboration Tools No 
Compatibility Testing No 
Data Modeling No 
Debugging No 
Deployment Management No 
Graphical User Interface No 
Mobile Development No 
No-Code No 
Reporting/Analytics No 
Software Development No 
Source Control No 
Testing Management No 
Version Control No 
Web App Development No 

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 

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