Astah Professional

Astah Professional

Change Vision, Inc.
Mermaid

Mermaid

Mermaid Chart
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+

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About

Astah Professional is an all-in-one modeling tool for software and system design, developed by Change Vision, Inc. It supports UML 2.x, ER diagrams, data flow diagrams (DFD), flowcharts, requirement diagrams, CRUD, and mind maps in a single tool. Unlike drawing tools, Astah creates models: a change to a model element is reflected in every diagram that uses it, so your diagrams stay consistent. AI features include AI Chat Copilot and AI-assisted code reverse engineering, which use your own API key for OpenAI, Azure OpenAI, Claude, Gemini, or an OpenAI-compatible service. A local MCP server lets external AI agents work with your Astah models. Conventional reverse engineering of Java, C#, and C++ code is also included. Astah Professional is a desktop application for Windows, macOS, and Linux, with a bundled Java runtime, so no separate Java installation is required. A 20-day free trial is available. Latest version: 12.0 (released July 15, 2026).

About

Mermaid is an AI-powered diagramming and visual collaboration platform that enables users to create flowcharts, system architecture diagrams, timelines, and other visualizations using natural language, code, or a graphical editor. The software transforms text prompts, uploaded documents, meeting transcripts, and code snippets into editable diagrams. Its AI assistant supports conversational diagram generation, diagram modifications, and recommendations for selecting appropriate visualization types. Users can create sequence diagrams, Gantt charts, entity relationship diagrams, mind maps, organizational charts, and other technical or business visualizations using Mermaid syntax. The platform provides real-time collaboration, shared workspaces, visual editing tools, diagram presentations, and integrations with developer and productivity applications. Mermaid also supports Model Context Protocol (MCP) integrations, version-controlled diagrams, single sign-on, and more.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Software architects, developers, and development teams

Audience

Software developers, system architects, DevOps engineers, data engineers, business analysts, project managers, product managers, technical writers, educators, consultants, designers, and enterprise teams seeking AI-powered diagram generation, software architecture visualization, workflow mapping, technical documentation, and real-time visual collaboration

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$11.99 per month
Available from $11.99 per month.
Monthly, annual, or perpetual licenses. 20-day free trial.
Free Version Not Supported
Free Trial Supported

Pricing

$6.67 per month
Free Version Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

Change Vision, Inc.
Founded: 2006
Tokyo, Japan
astah.net/products/astah-professional/

Company Information

Mermaid Chart
United States
mermaid.ai/

Alternatives

Astah UML

Astah UML

Change Vision, Inc.

Alternatives

draw.io

draw.io

JGraph
Astah SysML

Astah SysML

Change Vision, Inc.
Gliffy

Gliffy

Perforce
Lucidchart

Lucidchart

Lucid Software
SysMLv2 Editor

SysMLv2 Editor

Change Vision, Inc.

Categories

Diagram Supported
Flowchart Supported
Mind Mapping Supported
Process Mapping Supported

Categories

Diagram Supported
Flowchart Supported
Gantt Chart Supported

Diagram Features

Data Import / Export Supported
Drag & Drop Supported
Flowchart Supported
For Developers Supported
Mind Map Supported
Multi-User Collaboration Supported
Organizational Charting Not Supported
Templates Supported

Flowchart Features

Collaboration Not Supported
Diagramming Supported
Drag & Drop Supported
Organizational Charting Not Supported
Process Mapping Not Supported
Revision Management Not Supported
Templates Supported
Text to Chart Supported

Mind Mapping Features

Brainstorming Supported
Flowchart Supported
Presentation Tools Not Supported
Project Planning Supported
Publishing / Sharing Not Supported
Templates Supported

Integrations

Redmine Supported
Bhava Not Supported
C# Supported
C++ Supported
Confluence Not Supported
DokuWiki Not Supported
Filamental Not Supported
Gitea Not Supported
HTML Supported
Jekyll Not Supported
MediaWiki Not Supported
Mermaid Supported
Microsoft Word Not Supported
MkDocs Not Supported
NodeBB Not Supported
NoteRich Not Supported
OpenAI Supported
Swimm Not Supported
Vim Not Supported
Visual Studio Code Not Supported

Integrations

Redmine Supported
Bhava Supported
C# Not Supported
C++ Not Supported
Confluence Supported
DokuWiki Supported
Filamental Supported
Gitea Supported
HTML Not Supported
Jekyll Supported
MediaWiki Supported
Mermaid Not Supported
Microsoft Word Supported
MkDocs Supported
NodeBB Supported
NoteRich Supported
OpenAI Not Supported
Swimm Supported
Vim Supported
Visual Studio Code Supported
Claim Astah Professional and update features and information
Claim Astah Professional and update features and information
Claim Mermaid and update features and information
Claim Mermaid and update features and information