BEST 28 UML Tools in 2020

StarUML

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

An all-in-one diagram software for flowchart, org chart and more.

UML Designer provides a set of common diagrams to work with UML 2.5 models.

Altova offers a complete line of desktop developer software for XML, JSON, SQL, and UML; high-performance workflow automation server products; and a cross-platform mobile development platform.

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Looking for an affordable software with Enterprise Architecture tool, PMBOK tool, UML tool, Agile tool, BPMN tool and UX tool? Read this page for details.

WhiteStarUML is a fork of StarUML with an intent to revive its Delphi code base by updating code to...

Online diagramming application

Industry Standards Compliance. Finally a tool which respects 100% of the UML 2. 5 standards to model your software, and BPMN 2 standards for your business process.

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Diagramo is an online flowchart software - diagrams (create, edit and share)

Astah is a software design tool which supports UML, ERD, DFD, Flowchart, Mindmap, SysML, GSN and more. Free for students. Code Generator, reverse engineering with Java, C++, C#, PHP and XMI import/export supported.

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BOUML : An UML toolbox running under Linux, MacOS X and Windows to specify and generate code in C++, Java, Php, Python, Idl and MySQL

ConceptDraw is a new name given to the mind mapping system.

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

Sparx Systems Enterprise Architect is a simple yet powerful visual modeling and design software solution that enable users to model business processes, design and create software system and model-industry-based domains.

Gliffy is a powerful HTML5 online diagram maker. Create a flow chart, network diagram, UML diagram, organizational chart or wireframe with ease.

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.

MagicDraw | No Magic is one of the most respected providers of standards-compliant modeling, simulation and analysis solutions in the industry.

Simplify and communicate complex information using data-linked diagrams.

Modelio is an open source modeling tool supporting natively UML, BPMN and model exchange with XMI.

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

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Lightweight, powerful, easy to use, UML tool

freemium €59.0 / One-off (Standard Edition)