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Project Summary

Umple is a technology for model-oriented programming.

It can be used for pure UML modeling or to add UML constructs, such as associations and state machines to code written in Java, Python, PHP, C++ or Ruby. It generates code in these languages that can save a large amount of programming effort and result in higher quality.

The UmpleOnline tool allows you to edit UML diagrams graphically, and watch the Umple textual code being written in real time. This works the other way too: You can write textual Umple and watch the corresponding UML diagram appear.

Umple is being extended to support patterns, tracing and a variety of other features.

Umple is written in itself, which is central to maintaining its quality.

Umple can be used today by any programmer or modeler

Tags

association code_generation codegeneration code_generator codegenerator java json metamodel model-driven model_driven_development modeling modelling model-oriented model-oriented-programming object-oriented open-source patterns php preprocessor programming programming_language rapid_development software_development software_engineering softwareengineering statechart statemachine textualmodeling uml umple

In a Nutshell, Umple...

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Code Locations:
https://github.com/umple/umple
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Managers:
TimothyCLethbridge

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MIT License
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These details are provided for information only. No information here is legal advice and should not be used as such.

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Project Security

Vulnerabilities per Version ( last 10 releases )

There are no reported vulnerabilities

Project Vulnerability Report

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Vulnerability Exposure Index

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About Project Vulnerability Report

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About Project Security

Code

Lines of Code

Activity

Commits per Month

Community

Languages

Java 		59%
JavaScript 		27%
14 Other 		14%

30 Day Summary

Mar 1 2026 — Mar 31 2026

12 Month Summary

Mar 31 2025 — Mar 31 2026
  • 638 Commits
    Up + 74 (13%) from previous 12 months
  • 23 Contributors
    Up + 7 (43%) from previous 12 months

Most Recent Contributors

...thyCLethbridge dependabot[bot]
Thamil Vani Ilyas Ait Ali
Connor Harrison thamilvani

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