The best comprehensive modeling tools for all engineers

Astah’s modeling tools allow you to visualize the essence of your ideas, entire system architecture, safety-critical system, software and hardware designs.

Quickly and effortlessly build diagrams that create a clear understanding among teams.

Build UML, SysML, ER diagrams, Data Flow Diagrams, Flowcharts, Safety Concept Diagrams, GSN, mind maps and more in the most powerful modeling software for everyone from students to enterprise teams.

免费下载 Astah
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ByteDance

— is using Astah

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UML, ER Diagram, Requirement Diagram, Flowchart, Data Flow Diagram, Mind Map all in one-tool

Download
Windows 64 bit
Download
MacOS
Download
Linux DEB
Download
Linux RPM

SysML, STAMP/STPA, SCDL, GSN and Mind Map in one package for functional safety analysis

Download
Windows 64 bit
Not available
Mac OS – Not available
Not available
Linux DEB – Not available
Not available
Linux RPM – Not available

Astah Professional

UML & Data modeling

Our powerful and effortless tool, Astah Professional helps you create all diagrams you need for software modeling to create a clear understanding of your software design among teams.

Try the most intuitive and user-friendly modeling tool for your software modeling that supports Reverse engineering, code generation and team collaboration.

Supported Diagrams:
UML (Class diagrams, Usecase diagrams, Activity diagrams, Sequence diagrams, Statemachine diagrams, Deployment diagrams, Component diagrams, Communication diagrams, Composite Structure diagrams)
ER Diagrams, Flowcharts, Data Flow Diagrams, Requirement diagrams, Requirement tables, Mindmaps and CRUD.

If you are looking for a simple UML modeling tool for a personal use, please use Astah UML.

Watch Demo

Astah Professional IntroductionWatch this on BiliBili

Astah System Safety

SysML & Functional Safety analysis

Astah System Safety is a modeling tool for safety-critical systems to support system architecture modeling, system safety assessment and analysis using STAMP/STPA, SysML, SCDL and GSN.

This is for the automotive domain industry with self-driving cars that work with SOTIF and ISO 26262, and aerospace, railways, defense, robotics and healthcare industries where the safety property is crucial and also who are interested in adopting Model-Based Systems Engineering(MBSE).

Use GSN for creating Safety cases of the software safety-related projects and SysML, STAMP/STPA, SCDL for ADAS/ADS system safety design all in one tool.

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Diagramming tool for individuals & teams of all sizes

Astah’s tools allow you to create a wide variety of diagrams and offer flexible pricing based on your needs. Whether you’re a student just starting out, part of an enterprise-wide development team, or an academic faculty member, we have a package that is right for you!

Team Licensing Options

Our standard team licenses are sold in packs of 10, 25, 50, and 100. If you need 20 licenses, you might buy two packs of 10.
Currently, a “floating license” is available for the Professional and UML editions.

  • Astah Professional

    Team Licensing for

    Floating License

    Annual license
    Self-hosted server required
    Available from 1 seat

    Renewal Fee:
    Same as 1st year
    $185
    $1,670
    $4,265
    $6,670
    $11,100
    €140
    €1,260
    €3,220
    €5,040
    €8,400

    Organizational – Annual

    Annual license
    Hosted on Astah portal
    Available over 10 users

    Renewal Fee:
    Same as 1st year
    N/A
    $1,190
    $2,750
    $4,950
    $8,900
    N/A
    €900
    €2,100
    €3,800
    €6,850

    Organizational – Perpetual

    Perpetual license
    Hosted on Astah portal
    Available over 10 users

    Renewal Fee:
    N/A
    $740 (optional)
    $1,400 (optional)
    $2,440 (optional)
    $4,880 (optional)
    N/A
    €570 (optional)
    €1,075 (optional)
    €1,880 (optional)
    €3,760 (optional)
    N/A
    $2,490
    $5,775
    $9,950
    $19,900
    N/A
    €1,890
    €4,225
    €7,450
    €14,900
  • Astah UML

    Team Licensing for

    Floating License

    Annual license
    Self-hosted server required
    Available from 1 seat

    Renewal Fee:
    Same as 1st year
    $125
    $1,110
    $2,845
    $4,430
    $7,750
    €95
    €840
    €2,155
    €3,360
    €5,600

    Organizational License

    Annual license
    Hosted on Astah portal
    Available over 10 users

    Renewal Fee:
    Same as 1st year
    N/A
    $790
    $1,825
    $3,285
    $5,900
    N/A
    €600
    €1,400
    €2,530
    €4,560
  • Astah System Safety

    Team Licensing for

    Floating License

    Annual license
    Self-hosted server required
    Available from 1 seat

    $1,050
    $9,500
    $24,250
    $43,800
    $80,000
    €910
    €8,250
    €21,050
    €38,300
    €70,000

    Timed License

    Non-floating Annual license
    USD550 / €480 per license
    Purchase a license for a number of users

    $550
    $5,500
    $13,750
    $27,500
    $55,000
    €480
    €4,800
    €12,000
    €24,000
    €48,000
  • Astah SysML

    Team Licensing for

    Organizational License

    Annual License
    Hosted on Astah portal
    If you’d like less than 10 licenses, purchase Individual License.

    Renewal Fee:
    Same as 1st year
    $1,190
    $2,750
    $4,950
    $8,900
    €900
    €2,100
    €3,800
    €6,850
  • Astah GSN

    Team Licensing for

    Organizational License

    Annual License
    Hosted on Astah portal
    If you’d like less than 10 licenses, purchase Individual License.

    Renewal Fee:
    Same as 1st year
    $1,190
    $2,750
    $4,950
    $8,900
    €900
    €2,100
    €3,800
    €6,850

China-based Astah resellers

There are many resellers based in China where you can purchase Astah licenses.

See Reseller List

Video Library

Tons of Astah tutorial videos are available on BiliBili. Learn how to use Astah and modeling in general with our video library.

Astah Professional IntroductionWatch this on BiliBili
Astah System Safety IntroductionWatch this on BiliBili

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