U

Umlet

Open-source alternative toLLucid

UMLet is an open-source UML diagramming tool for quickly creating, customizing, exporting, and sharing UML diagrams through a simple user interface.

Umlet website screenshot

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Total stars

Last 7 days

1,601

HostingSelf-hostable

LicenseGPL-3.0

LanguageJavaScript

Last commitOct 9, 2025

Latest releaseNot available

Release frequencyNo releases

Contributors35

Stars1,601

Forks318

Issues185

What it does

UMLet is a free, open-source UML diagramming tool designed for quickly drawing UML diagrams. Its simple user interface supports creating custom UML elements and sharing diagrams through Eclipse.

The tool exports diagrams to EPS, PDF, JPG, SVG, and the clipboard. The supplied README also points users to compiled versions and identifies UMLetino as a browser-based way to use UMLet. The repository is licensed under GPL-3.0.

Capabilities

#Lifecycle diagram creation for documented systems and processes

Categories

#Knowledge Management #Diagramming #Digital Whiteboards #Project Management

Built with

GGitHub Actions

CCSS

MMocha

JJavaScript

EESLint

BBash

WWebpack

NNodeJS

TTypeScript

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