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What is ChatUML?

ChatUML is a cutting-edge application that harnesses the power of artificial intelligence to simplify the process of designing complex diagrams. Utilizing sophisticated AI methodologies, our platform generates diagrams that are not only visually appealing but also exceptionally well-structured, ensuring a high level of clarity and efficiency in the creation process. This allows users to focus more on their ideas while relying on the tool to handle the technical aspects of diagram design.

What is Astah UML?

Astah UML is a desktop UML 2.x modeling application from Change Vision, Inc. It is designed for development teams, universities, and individual engineers who need standard UML diagrams without the complexity of a full systems-engineering suite. Because designs are stored as models, an update made in one place carries through to every related diagram, which keeps design documentation consistent as a project grows. Version 12.0, released in July 2026, brings AI into UML modeling. AI Chat Copilot and AI-assisted code reverse engineering run on your organization's own API key for OpenAI, Azure OpenAI, Claude, or Gemini, or for an OpenAI-compatible service. Local MCP server integration lets AI agents connect to Astah models. Plans start at $6.99 per month. A free license is available for students, and a 20-day free trial is offered. Astah UML runs on Windows, macOS, and Linux without a separate Java installation.

Media

Media

Integrations Supported

Integrations Supported

Azure OpenAI Service
Claude
Gemini
HTML
Java
OpenAI
Redmine

API Availability

API Availability

Has API

Pricing Information

Pricing not provided
Free Trial Offered?

Pricing Information

$6.99 per month
Plans from $6.99 per month. Free license for students. 20-day free trial.
Free Trial Offered?

Supported Platforms

SaaS

Supported Platforms

Windows
Mac
On-Prem
Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Not specified

Training Options

Documentation Hub

Company Facts

Organization Name

ChatUML

Company Website

chatuml.com

Company Facts

Organization Name

Change Vision, Inc.

Date Founded

2006

Company Location

Tokyo, Japan

Company Website

astah.net/products/astah-uml/

Categories and Features

Diagram

Not specified

Categories and Features

Diagram

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

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