Powering Engineering Excellence with Astah

Astah’s modeling tools allow you to visualize the essence of your ideas and software designs. Quickly and effortlessly build diagrams that create a clear understanding among teams.
Build UML, ER diagrams, Data Flow Diagrams, Flowcharts, mind maps and more in the most powerful modeling software for everyone from students to enterprise teams.

Get a free trial
astah-modeling-tool
section divider

Unleash your full potential

Astah offers a variety of tools so you can select what’s right for you.

Simplicity Icon
Easy to use
Document Icon
Abundant online content
Gear Icon
Extensive add-on library

Astah advantages

Simplicity, quality, and community are what set Astah apart.
For more than a decade, we’ve been committed to creating software modeling tools with our customers in mind. Our extensive add-on library allows you to tailor Astah to your needs, and our abundant online content means you can easily find everything you need to start diagramming today!

Explore our products