System Designer Alternatives

System Designer is described as 'uses UML, a standard, to define your model. So you probably already know how to create a model in System Designer even if you have never run it' and is an app in the development category. There are more than 10 alternatives to System Designer for a variety of platforms, including Windows, Linux, Mac, Eclipse and Web-based apps. The best System Designer alternative is PlantUML, which is both free and Open Source. Other great apps like System Designer are Visual Paradigm, StarUML, UMLet and Software Ideas Modeler.

System Designer alternatives are mainly UML Modeling Tools but may also be Diagram Editors or Mind Mapping Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of System Designer.

System Designer alternatives page was last updated

System Designer

Free • Open Source

Mac
Online
Android
iPhone
Android Tablet
iPad

System Designer uses UML, a standard, to define your model. So you probably already know how to create a model in System...

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PlantUML
Is this is a good alternative?
Yes
No
Free • Open Source
Mind Mapping Tool
Diagram Editor
UML Modeling Tool
Mac
Windows
Linux
Online
Android
Chrome OS
111 PlantUML alternatives
PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams. The generator can be run anywhere within JVM and integrated with various application such as wiki, text editor, IDE, programming language, documentation generator, and others.
- - PlantUML is the most popular Web-based, Windows, Android & Mac alternative to System Designer.
- - PlantUML is the most popular Open Source & free alternative to System Designer.
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PlantUML Features
1. PortablePlantUML can be used from a USB stick or similar with no prior installation.
2. Support for MarkDownPlantUML supports MarkDown for document formatting.
Text Based Format
Java based
VCS Friendly
Workflow
Flow Chart
Rendering
Create UML entities
Visual Paradigm
Is this is a good alternative?
Yes
No
Paid • Proprietary
Diagram Editor
UML Modeling Tool
Mac
Windows
Linux
69 Visual Paradigm alternatives
Visual Paradigm for UML (VP-UML) is a UML design tool and UML CASE tool designed to aid software development. VP-UML supports key modeling standards such as Unified Modeling Language (UML) 2.4, SysML, ERD, DFD, BPMN 2.0, ArchiMate 2.0, etc.
- - Visual Paradigm is the most popular commercial alternative to System Designer.
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Visual Paradigm Features
Ide integration
Entity Relationship Diagrams
Website wireframing
SAML Single Sign-On
User story mapping
StarUML
Is this is a good alternative?
Yes
No
Paid • Proprietary
UML Modeling Tool
Mac
Windows
Linux
54 StarUML alternatives
StarUML is a program to develop fast, flexible, extensible, featureful, and freely-available UML/MDA platform running on Win32 platform. The goal of the StarUML project is to build a software modeling tool and also platform that is a compelling replacement of commercial UML...
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StarUML Features
Entity Relationship Diagrams
Sequence Diagrams
Export to PDF
Class Diagrams
UMLet
Is this is a good alternative?
Yes
No
Free • Open Source
Diagram Editor
Windows
35 UMLet alternatives
UMLet is an open-source UML tool with a simple user interface: draw UML diagrams fast, export diagrams to eps, pdf, jpg, svg, and clipboard, share diagrams using Eclipse, and create new, custom UML elements.
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UMLet Features
1. Extensible by Plugins/ExtensionsUMLet can be extended with add-ons, plugins and extensions.
Plug-ins
Java based
Content Templates
Drag and Drop
Software Ideas Modeler
Is this is a good alternative?
Yes
No
Paid • Proprietary
Windows
58 Software Ideas Modeler alternatives
Lightweight, powerful, easy to use, UML tool

Software Ideas Modeler is a lightweight and powerful CASE tool. It supports UML 2.2 diagrams and a lot of other ones. Software Ideas Modeler is freeware (for non-commercial use). Commercial user may use this software only after buying.
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Software Ideas Modeler Features
Code generation
Papyrus UML
Is this is a good alternative?
Yes
No
Free • Open Source
UML Modeling Tool
Mac
Windows
Linux
Eclipse
38 Papyrus UML alternatives
Graphical modelling open source UML2 tool based on Eclipse environment.
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Papyrus UML Features
SysML
Modelio
Is this is a good alternative?
Yes
No
Free • Open Source
UML Modeling Tool
Windows
Linux
Eclipse
32 Modelio alternatives
Modelio is an open source modeling tool supporting natively UML, BPMN and model exchange with XMI. It allows to draw all UML2 diagrams and specific diagrams for business process modeling. It is easy and powerful with the capacity to add new functionalities to the application.
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Modelio Features
1. PortableModelio can be used from a USB stick or similar with no prior installation.
SysML
NClass
Is this is a good alternative?
Yes
No
Free • Open Source
Windows
26 NClass alternatives
NClass is a free tool to easily create UML class diagrams with full C# and Java language support. The user interface is designed to be simple and user-friendly for easy and fast development. Properties, enums, delegates and other language specific elements are fully supported...
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NClass Features
Class Diagrams
Discontinued
Since 2010
Violet UML Editor
Is this is a good alternative?
Yes
No
Free • Open Source
UML Modeling Tool
Mac
Windows
Linux
31 Violet UML Editor alternatives
Violet is a UML editor with these benefits: Very easy to learn and use. Draws nice-looking diagrams. Completely free. Cross-platform. Violet is intended for developers, students, teachers, and authors who need to produce simple UML diagrams quickly.
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Violet UML Editor Features
State machine
Sequence Diagrams
Flow Chart
WhiteStarUML
Is this is a good alternative?
Yes
No
Free • Open Source
Windows
35 WhiteStarUML alternatives
WhiteStarUML is a fork of StarUML with an intent to revive its Delphi code base by updating code to recent Delphi editions, reducing dependence on third party components and fixing bugs and adding new features.
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WhiteStarUML Features
Support for Unicode
Discontinued
The last update is from March 2018.
BOUML
Is this is a good alternative?
Yes
No
Free • Proprietary
Mac
Windows
Linux
29 BOUML alternatives
BOUML is a free UML 2 tool box (under development) allowing you to specify and generate code in C++, Java, Idl, Php and Python.
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BOUML Features
Code generation
TopCoder UML
Is this is a good alternative?
Yes
No
Free • Open Source
UML Modeling Tool
Mac
Windows
Linux
22 TopCoder UML alternatives
TopCoder UML Tool is an easy to use, consistent modeling tool for use in Design and Development competitions. The new tool was built to model sequence, class, use case, and activity diagrams. On top of that, all those elements can have documentation easily attached to them.
TopCoder UML has no features, suggest some!