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features
design
support

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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

Flowcharts created in DrakonHub adhere to ergonomic principles established by the aerospace sector, which effectively eliminates visual clutter from diagrams. This clarity emphasizes the primary path using a skewer, while logical segments are delineated through the silhouette technique. Implicit relationships are highlighted via the concept of common fate, adding organization to mind maps. It is crucial to ensure that the diagram's structure is immediately recognizable, as a clear framework allows readers to understand how each element interacts with its parent, siblings, and offspring. Prior to coding, it's beneficial to sketch the program, revising the sketch throughout the development process. This visual representation provides essential clarity that can significantly enhance productivity. After six months, this initial sketch will serve as a valuable reference for recalling the program's complexities and nuances. Diagrams serve as an effective means of documenting project knowledge succinctly, and it is important to retain ownership of this information rather than allowing developers to obscure it within the source code. Ultimately, maintaining clarity in documentation will facilitate better communication among team members.

API Access

Has API Yes 

API Access

Has API No 

Screenshots View All

Screenshots View All

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

No price information available.
Free Trial Yes 
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 Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours Yes 
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

DRAKON Labs

Founded

2015

Country

Norway

Website

drakonhub.com

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 

Product Features

Business Process Management

Access Controls / Permissions No 
Alerts / Notifications No 
Business Process Automation No 
Business Rules Management No 
Collaboration Yes 
Process Change Tracking No 
Process Mapping Yes 
Process Modeling & Design Yes 
Visual Workflow Management No 

Diagram

Data Import / Export No 
Drag & Drop Yes 
Flowchart Yes 
For Developers Yes 
Mind Map Yes 
Multi-User Collaboration Yes 
Organizational Charting Yes 
Templates No 

Idea Management

Activity Dashboard No 
Brainstorming Yes 
Collaboration Yes 
Creator Tracking No 
Idea Ranking No 
Project Tracking No 
Status Tracking No 

Mind Mapping

Brainstorming No 
Flowchart No 
Presentation Tools No 
Project Planning No 
Publishing / Sharing No 
Templates No 

Requirements Management

Automated Functional Sizing No 
Automated Requirements QA No 
Automated Test Generation No 
Automated Use Case Modeling No 
Change Management No 
Collaboration Yes 
History Tracking No 
Prioritization No 
Reporting No 
Status Reporting No 
Status Tracking No 
Summary Reports No 
Task Management Yes 
To-Do List No 
Traceability No 
User Defined Attributes No 

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