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Developer(s) MKLab
Stable release
v2.8.0 / November 15, 2016; 5 months ago (2016-11-15)[1]
Operating system Microsoft Windows, macOS, Linux
Type UML tool
License Proprietary commercial software (formerly GNU GPL)

StarUML is a UML tool by MKLab. The software was licensed under a modified version of GNU GPL until 2014, when a rewritten version 2.0.0 was released for beta testing under a proprietary license.

After being abandoned for some time, the project had a revival to move from Delphi to Java/Eclipse and then stopped again. In 2014, a rewritten version was released as proprietary software. However, the open source version's community is still active and many topics are discussed on the forums.[citation needed]

The stated goal of the project was to replace larger, commercial applications such as Rational Rose and Borland Together.

StarUML supports most of the diagram types specified in UML 2.0. It is currently missing timing and interaction overview diagrams.

StarUML was written in Delphi, which is one of the reasons why it was abandoned for a long time.[citation needed] Since December 2005 StarUML was not updated anymore, although some external modules were updated[2]

Currently the newest version of StarUML by the original authors is available for download under the handle "StarUML 2". The public beta is available, although not under the GPL license. Final price and new license type yet remains unknown. This version has been completely rewritten from scratch and includes among many features: support for extensions, OS X compatibility and a new graphical user interface.[citation needed]


StarUML 2.0 uses its own file format, with the .mdj extension.


Can import files from StarUML 1.0 using format .uml. Also can import a fragment from a .mfj file.


Stable release
v5.8.2 / November 27, 2016; 4 months ago (2016-11-27)[3]
Operating system Microsoft Windows
Type UML tool
License GNU GPL v2
Website WhiteStarUML

At the end of 2011 StarUML was forked. Under the name WhiteStarUML it is now actively developed in Object Pascal. WhiteStarUML is based on the last version of StarUML (5.0) and started with that version number.

See also[edit]


  1. ^ "StarUML download page". StarUML. November 15, 2016. Retrieved December 8, 2016. 
  2. ^ StarUML Homepage
  3. ^ "WhiteStarUML project". SourceForge. November 27, 2016. Retrieved December 8, 2016. 

External links[edit]