Alternatives to NClass for all platforms with any license

PlantUML

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...

Free Open Source Mac Windows Linux Web Android ... Chrome OS
Create UML entities Portable Text Based Format VCS Friendly Add a feature

83 Like
StarUML

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...

Free Personal Mac Windows Linux
Sequence Diagrams Class Diagrams Add a feature

38 Like
Visual Paradigm

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...

Free Personal $ $ $ Mac Windows Linux
BPMN2 animation Entity Relationship Diagrams Ide integration SAML Single Sign-On ... User story mapping Website wireframing Wireframing Add a feature

32 Like
UMLet

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...

Free Open Source Windows
Content Templates Drag n drop Add a feature

29 Like
Umbrello

Umbrello UML Modeller is a Unified Modelling Language diagram programme for KDE. UML allows you to create diagrams of software and other systems in a standard format.

Free Open Source Mac Windows Linux
No features added Add a feature

32 Like
Enterprise Architect

Enterprise Architect is a collaborative modeling, design and management platform based on UML and related standards. Agile, intuitive and extensible with fully...

Commercial Windows
Class Diagrams Component Diagrams Sequence Diagrams Add a feature

33 Like
Software Ideas Modeler

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....

Free Personal Windows
No features added Add a feature

25 Like
ClickCharts

Clickcharts flowchart software allows for easy drawing of diagrams and flowcharts to provide a way of organising and displaying data. Lay out your ideas, organisation...

Free Personal $ $ $ Mac Windows Android Kindle Fire
ER Diagrams Flow diagram visualisation Add a feature

4 Like
Papyrus UML

Graphical modelling open source UML2 tool based on Eclipse environment.

Free Open Source Mac Windows Linux Eclipse
No features added Add a feature

11 Like
Violet UML Editor

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...

Free Open Source Mac Windows Linux
No features added Add a feature

10 Like
WhiteStarUML

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...

Free Open Source Windows
Support for Unicode Add a feature

11 Like
astah Community Edition

Astah Community is an add-on tool for your UML that is ready to use the instant you download it, allowing your UML to be quickly and easily enhanced, and refining your...

Free Windows Linux
No features added Add a feature

13 Like
- Discontinued Discontinued from September 2018. Cannot be downloaded anymore.
ObjectAid

The ObjectAid UML Explorer is an agile and lightweight code visualization tool for the Eclipse IDE. It shows your Java source code and libraries in live UML class and...

Freemium Mac Windows Linux
No features added Add a feature

2 Like
UMLGraph

UMLGraph allows the declarative specification and drawing of UML class and sequence diagrams. The current features are part of an ongoing effort aiming to provide...

Free Open Source Mac Windows Linux
No features added Add a feature

2 Like
Classbuilder

ClassBuilder is freeware CASE tool targeted at the C++ developer, running on Win2K-XP. It lets you create, manipulate and navigate classes, class relations, class...

Free Open Source Windows
Object-oriented Language Add a feature

4 Like