Leverage the power of software modeling
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.
Unleash your full potential
Astah offers a variety of tools so you can select what’s right for you.
Total software design tool with UML, ERD, flowchart, DFD, and more.
Lightweight UML diagramming tool with mind mapping abilities.
Lightweight SysML modeling tool for systems engineering.
MBSE tool that includes SysML, GSN, STPA/STAMP, SCDL for safety engineers.
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!