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.
Important Notice about Astah GSN and SysML
We’re announcing end-of-life of Astah GSN and price increase of Astah SysML.
New Academic Program
Astah unleashes the UML, MBSE + Safety design tools, used by over 640,000 users and 1,300 schools, to empower more students in STEM courses around the globe.
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!
