Perfect for Software Development

Visualize the essence of your ideas before you code. Diagrams create a clear understanding of thoughts shared among teams. Improve the quality of your software and increase customer satisfaction.

Learn More Download

Modeling for Teams of all Sizes

Astah provides the tools and platforms to help unleash your full potential.

An intuitive safety modeling platform for designing System Assurance, Dependability, Safety and more.

Learn More

A lightweight, and user friendly tool to model and analyze complex systems.

Learn More

The world’s first UML software wirtten exclusivley for the iPad, so you can take your work with you wherever you go.

Learn More

Trusted and Used Around the Globe

From educational institutions to Fortune 500 companies, Astah is used in thousands of organizations worldwide.

What Sets Astah Apart

Simplicity, Quality, and Community are our three dividing priorities.

Excellent Customer Support

In addition to providing solutions promptly for customer's problems, we're always trying to improve our products with our customers in mind.

Learn More

Abundant Online Content

Astah's tips in "astah in 5 min", and the foundation and method of modeling found in "Are you modeling", you can find everything you need to start modeling.

Learn More

Free Add-On Library

The extensive add-on library allows you to tailor our tools and platform to your needs. Numerous plug-ins and integrations help extend the usability and flexibility of Astah.

Learn More

Friends of Astah

Software developers, IT Consultants, even conference presenters all belong to the Friends of Astah.
They do awesome work, we are happy to support them.

Great tool for helping us visualize the essence of the problem and merge the knowledge of individuals into the collective understanding of the development team.

Mary Poppendieck, Author of“Lean Software Development"

At this point Astah is my default modeling tool.

Conner Doyle, Dev and Blogger

I have been using Astah for many years. Actually, I started with JUDE. Astah is a very simple and complete tool, yet easy to use. I have successfully recommend it to my students for a long time.

Jose Rodrigues, Founder of ScrumHalf P.O.

❮❮ Meet Our Friends ❯❯