UMLet Alternatives

Online diagramming application

StarUML

PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.

LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.

Dia is a GTK+ based diagram creation program for GNU/Linux, MacOS X, Unix, and Windows, and is released under the GPL license.

UMLGraph is a professional automated drawing tool that allows the designers the declarative specification and drawing of UML class and sequence diagram.

yEd is a free desktop application to quickly create, import, edit, and automatically arrange diagrams. It runs on Windows, Mac OS X, and Unix/Linux.

OmniGraffle is for creating precise graphics like website wireframes, an electrical system designs, or mapping out software class.

Umbrello UML Modeller is a Unified Modelling Language diagram programme for KDE.

ArgoUML, free and safe download. ArgoUML latest version: Open-source diagramming application for personal computers. ArgoUML is a program that allows users to create complex and professional diagrams.

Gaphor is a Python-based, open source, multiplatform and multipurpose modeling application for creating nice UML diagrams for documentation.

NClass is a free tool to easily create UML class diagrams with full C# and Java language support.

Lightweight, powerful, easy to use, UML tool

freemium €59.0 / One-off (Standard Edition)