UML diagram software

Effortlessly
Create
UML Diagrams

A simple to learn, simple to use tool, Astah Professional will allow you to create the UML diagrams you need.
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UML Diagram Software
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Explore why teams use Astah Professional

Clarify Complexity and
Shared Understanding

Facilitate clear communication and a unified understanding among team members by visualizing complex systems into clear diagrams.

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Comprehensive
UML Coverage

Astah Professional supports a wide range of UML diagrams, ensuring that all aspects of software modeling are covered.
You can generateUML diagrams that adhere to UML syntax, reducing errors and enhancing clarity.

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Traceability Across Different Diagrams

You can reuse the model across different diagrams to significantly maintain traceability and linkage between various UML diagrams.

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Flexibility and Extendibility

Astah Professional is highly flexible, allowing for customization and extension through plugins and APIs to suit various project needs.

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See how Astah Professional improves the way you work

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How Our Customers Use Astah Professional

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Quick UML Model Development

Customers use Astah Professional for rapid development of UML models, enabling them to visualize and iterate on their designs swiftly.
communication diagram

System Planning
and Design

Astah Professional is used extensively for planning new features and system architecture. It ensures that complex software systems are designed efficiently.
Requirement Table

Detailed Docs Generation

Astah Professional helps create detailed, up-to-date documentation during development ensuring all stakeholders understand the system, enhancing communication and project management.
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Trusted & Used Worldwide

Globe
99countries
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1,321schools
Users
676,277users
Plug-in Icon
37plug-ins
Friends Icon
52friends of astah
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Start Creating UML Diagrams in Minutes!

Start a free 20-day trial

Our free trials are fully functional.
Experience the power of Astah Professional for yourself!
Download Astah Professional Free Trial (Windows) Download Astah Professional Free Trial (macOS) Download Astah Professional Free Trial (Linux) Download Astah Professional Free Trial (Linux)