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Average Ratings 0 Ratings

Total
ease
features
design
support

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Write a Review

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

Diagram AI is an online diagramming tool that utilizes natural language inputs to create customizable diagrams. Users have the ability to generate various types of diagrams including flowcharts, sequence diagrams, cloud architecture maps, class diagrams, and runbooks, while also being able to modify labels, hierarchy, and layout on an interactive canvas or by directing the AI to reorganize drafts. The platform accommodates PDFs, images, and text as contextual references, facilitates automatic layout adjustments, and maintains a version history for easy restoration. Diagrams can be exported in multiple formats such as XML, SVG, or PNG, making them suitable for use in documentation and presentations. The free tier allows one usage per day and does not permit file uploads, while the Pro and Plus subscriptions provide additional monthly credits and the option to upload files, with the Plus plan offering a greater credit limit. This service is particularly designed to assist product, engineering, and operations teams in documenting their workflows, systems, and architectural designs effectively. With its user-friendly interface and intelligent features, Diagram AI enhances collaborative efforts in visualizing complex concepts.

API Access

Has API Yes 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

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

Integrations

Azure OpenAI Service No 
Claude No 
Claude for Legal 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

$9.90/month
The free plan costs $0/month and includes one use per day with no file uploads. Pro is $9.90/month, billed monthly, with 500 monthly credits. Plus is $19.90/month, billed monthly, with 1,500 monthly credits. Pro and Plus support image, PDF, and text uploads as context. Annual billing advertises 40% savings.
Free Trial No 
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 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 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 No 
Webinars No 
Live Training (Online) No 
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

Diagram AI

Website

aidiagram.net

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 

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