Astah is a modeling tool

Develop and Explore your designs


Astah’s best-in-class modeling software packages are the perfect tools for modeling, visualizing designs, achieving safe and secure systems. They allow you to communicate with your team and stakeholders such as your clients or electrical engineers to build better communications more efficiently.

Our suite of tools provide a complete solution for individual developers, engineering teams, and technical architects. When you use Astah’s tools to build requirements and architecture, your development efforts will be more efficient and streamlined.


UML Diagrams

ER Diagrams, Flowcharts, Data Flow Diagram

SysML Diagrams


Can’t decide?

There’s an Astah product right for you. Our comparison chart will help you select the one that best meets your needs.

Compare our products

Academic Special Offers

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Looking for our free Community edition?

Astah Community edition is no longer available, but we have options that may better suit your needs.

About Astah Community