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Average Ratings 0 Ratings

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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

Mermaid is an AI-powered diagram creation and collaboration platform developed by the team behind the open-source Mermaid.js diagramming library. The software enables users to generate diagrams from natural language descriptions, uploaded documents, screenshots, meeting transcripts, and code snippets. Its AI assistant interprets user instructions and creates editable visualizations such as flowcharts, sequence diagrams, entity relationship diagrams, timelines, Gantt charts, and organizational charts. Users can refine diagrams through conversational prompts, direct manipulation in the visual editor, or modifications to the underlying Mermaid syntax. The platform provides a synchronized code editor and graphical canvas, allowing users to switch between text-based and visual editing workflows. Real-time collaboration features include shared team workspaces, simultaneous editing, comments, and diagram sharing through accessible links. Mermaid integrates with developer tools and productivity applications such as Visual Studio Code, GitHub Copilot, Confluence, Jira, and Google Docs. Its Model Context Protocol server allows compatible AI assistants, including Claude and Cursor, to generate, validate, and render diagrams within existing development workflows. Enterprise features include single sign-on, access controls, encrypted diagram storage, administrative capabilities, and SOC 2 compliance.

API Access

Has API Yes 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

Redmine Yes 
Antalogy No 
Astah Professional No 
Atom No 
Bhava No 
Brackets No 
Claude Yes 
Confluence No 
Git No 
Inkdrop No 
Jekyll No 
Markdown No 
Mattermost No 
Microsoft Word No 
Obsidian No 
Quarto ERP No 
Sphinx No 
TiddlyWiki No 
Writerside No 
phpBB No 

Integrations

Redmine Yes 
Antalogy Yes 
Astah Professional Yes 
Atom Yes 
Bhava Yes 
Brackets Yes 
Claude No 
Confluence Yes 
Git Yes 
Inkdrop Yes 
Jekyll Yes 
Markdown Yes 
Mattermost Yes 
Microsoft Word Yes 
Obsidian Yes 
Quarto ERP Yes 
Sphinx Yes 
TiddlyWiki Yes 
Writerside Yes 
phpBB Yes 

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

$6.67 per month
Free Trial Yes 
Free Version Yes 

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 Yes 
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 No 
Live Rep (24/7) Yes 
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) Yes 
In Person No 

Vendor Details

Company Name

Change Vision, Inc.

Founded

2006

Country

Tokyo, Japan

Website

astah.net/products/astah-uml/

Vendor Details

Company Name

Mermaid Chart

Country

United States

Website

mermaid.ai/

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

Diagram

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

Flowchart

Collaboration No 
Diagramming No 
Drag & Drop No 
Organizational Charting No 
Process Mapping No 
Revision Management No 
Templates No 
Text to Chart No 

Gantt Chart

Alerts/Notifications No 
Capacity Monitoring No 
Color Coding No 
Dependency Tracking No 
Drag & Drop No 
Milestone Tracking No 
Progress Tracking No 
Task Management No 
Templates No 

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