Browse free open source Java UML Tools and projects below. Use the toggles on the left to filter open source Java UML Tools by OS, license, language, programming language, and project status.

  • Intelligent Retail Management Icon
    Intelligent Retail Management

    Retail space, product categories, planograms, automatic ordering, and shelf labels management

    Quant offers a wide range of solutions for retail. Within one integrated software system, it allows you to efficiently combine the management of retail space, shelf labels and marketing materials with task management, reporting and automatic replenishment.
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  • Go beyond a virtual data room with Datasite Diligence Icon
    Go beyond a virtual data room with Datasite Diligence

    Datasite Diligence, helps dealmakers in more than 170 countries close more deals, faster.

    The data room with a view. Evolved for next-generation M&A. Built on decades of deal experience. Packed with expert tools, yet intuitive for novices. A fully mobile platform with frictionless processes. Smart AI tools that let you close more deals, faster, plus end-to-end support at all times. Do due diligence with intelligence.
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  • 1
    plantuml
    PlantUml allows to quickly create some UML diagram using a simple textual description language.
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    Downloads: 3,956 This Week
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  • 2
    RODIN
    Open tool platform for the cost effective rigorous development of dependable complex software systems services. This platform is based on the event-B formal method and provides natural support for refinement and mathematical proof.
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    Downloads: 1,179 This Week
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  • 3
    Violet UML Editor
    Violet is a UML editor with these benefits: Very easy to learn and use. Draws nice-looking diagrams. Completely free. Cross-platform. Violet is intended for developers, students, teachers, and authors who need to produce simple UML diagrams quickly. Want to contribute ? Source code is hosted on github : https://github.com/violetumleditor/violetumleditor
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    Downloads: 742 This Week
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  • 4
    brModelo 3.2

    brModelo 3.2

    ER Databese Model

    Tool used to Database ER model Ferramenta para modelagem ER em bancos de dados.
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    Downloads: 975 This Week
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  • LinkSquares: All-in-One Contract Management Platform Icon
    LinkSquares: All-in-One Contract Management Platform

    #1 Customer Rated CLM Any Contract. Every Department. One Platform.

    LinkSquares is the leading Contract Lifecycle Management (CLM) software designed to help legal, procurement, and business operations teams master the entire contract lifecycle, from creation to execution and renewal. The platform transforms how companies manage agreements by centralizing data, automating routine work, and providing actionable insights powered by AI. This single, connected source of truth helps teams eliminate manual processes, streamline workflows, boost visibility, and ensure compliance across thousands of contracts, ultimately reducing risk and administrative burden.
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  • 5
    Yaoqiang BPMN Editor

    Yaoqiang BPMN Editor

    an Open Source BPMN 2.0 / DMN 1.1 Modeler

    Yaoqiang BPMN Editor is a graphical editor for business process diagrams, compliant with OMG specifications (BPMN 2.0 / DMN 1.1).
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    Downloads: 81 This Week
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  • 6
    Modelio - Modeling environment (UML)

    Modelio - Modeling environment (UML)

    Modeling tool supporting UML, BPMN and other standards

    Modelio is an open source modeling environment tool providing support for the latest standards (UML 2, BPMN 2, ...). It can be extended by adding modules which add new functionalities. A large set of modules (free and open source) supporting code management (generation/reverse), modeling standards (TOGAF, SysML, SoaML, ...), document generation, ... is available from the Modelio Store (https://store.modelio.org/). Need help or want to share experience with the Modelio community? Go to our forum: https://www.modelio.org/forum/index.html.
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    Downloads: 94 This Week
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  • 7
    JGraphT
    JGraphT is a free Java class library that provides mathematical graph-theory objects and algorithms. JGraphT supports a rich gallery of graphs and is designed to be powerful, extensible, and easy to use.
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    Downloads: 48 This Week
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  • 8
    Whole Platform
    The Whole Platform is a technology for engineering the production of software. We provide an Eclipse based Language Workbench for developing, manipulating and transforming languages using a model driven approach.
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    Downloads: 229 This Week
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  • 9
    jFuzzyLogic is a java implementation of a Fuzzy Logic software package. It implements a complete Fuzzy inference system (FIS) as well as Fuzzy Control Logic compliance (FCL) according to IEC 61131-7 (formerly 1131-7).
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    Downloads: 25 This Week
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  • Secure Cloud Storage for Files, Photos and Documents | pCloud Icon
    Secure Cloud Storage for Files, Photos and Documents | pCloud

    Store, access, and manage your files on your own terms, from anywhere.

    Store, sync, and share your files securely with pCloud. Get up to 10 GB of free secure cloud storage and access your files from any device, anywhere.
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  • 10
    Linguistic Tree Constructor

    Linguistic Tree Constructor

    Syntax tree editor for rapid annotation of existing text

    Linguistic Tree Constructor (LTC) is a tool for drawing lingusitic syntax trees of already-existing text. It is a syntax editor, not a text editor, so the text has to exist already. It is best suited for large-scale, rapid creation of hand-annotated treebanks. The user can define their own node categories, and can label each node with labels, also definable by the user. LTC supports "generic", X-Bar and RRG trees. Supports interlinear texts in SIL SFM format.
    Downloads: 11 This Week
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  • 11
    ConceptBase.cc

    ConceptBase.cc

    A Database System for Metamodeling and Method Engineering

    ConceptBase.cc is a multi-user deductive and object-oriented database system for metamodeling and method engineering. Includes a graphical client that builds upon the logic-based features of the ConceptBase.cc server. The data model is O-Telos. ConceptBase.cc can represent information at the data level (example data, traces of process executions etc.), the class level (schemas, process definitions etc.), the metaclass level (constructs of modeling languages), the meta-metaclass level (constructs for defining modeling languages), and so forth. ConceptBase.cc is developed by the ConceptBase Team at University of Skövde (HIS). ConceptBase.cc supports Linux, Mac OS X and Windows. ConceptBase.cc is free software distributed under a FreeBSD-style license.
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    Downloads: 35 This Week
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  • 12
    EasyStruts provide advanced support for developing Struts web applications with Eclipse . keywords: MVC, Struts, Eclipse, Java
    Downloads: 11 This Week
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  • 13
    A fast and reliable tool, written in Java 8, for generating professional UML sequence diagrams from text. Supports actors, con-/destructors, threads, broadcasts, notes, and fragments. Can serve as a Javadoc taglet. Exports PDF, (E)PS, SVG, PNG, ... The source code is hosted at http://github.com/sdedit/sdedit
    Downloads: 5 This Week
    Last Update:
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  • 14

    Z Word Tools

    Write, check, index and diagram Z specifications in Microsoft Word.

    Tools to allow Z specifications to be written in Microsoft Word. Includes a unicode font for Z symbols. Provides: WYSIWYG editing fully integrated into Word; Typechecking using fuzz (for Spivey Z) or CZT (for ISO standard Z); Indexing and cross-referencing; Diagrams of specification structure; Conversion from Spivey to Standard Z- also available as a stand-alone program and Java class for non-windows users. See project website for details.
    Downloads: 7 This Week
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  • 15
    Green, an Eclipse plugin, is an advanced yet simple UML class-diagram tool, developed primarily for student use. It does live round-tripping, so it's easy to move between diagram and code views. It's extensible: users can define their own relations
    Downloads: 4 This Week
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  • 16
    Downloads: 14 This Week
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  • 17
    This project develops a graphical tool to support i* modelling and analysis of the stakeholder requirements. The main development site is at https://se.cs.toronto.edu/trac/ome
    Downloads: 11 This Week
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  • 18
    mimosa
    Mimosa is a modeling and simulation platform, covering the process from building conceptual models to running the simulations. The specification uses ontologies and an extensible set of formalisms for the dynamics. The simulation kernel is based on DEVS.
    Downloads: 3 This Week
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  • 19
    Groove
    NOTE: The GROOVE codebase has moved to https://github.com/nl-utwente-groove
    Downloads: 2 This Week
    Last Update:
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  • 20
    plantuml-dependency
    PlantUml Dependency allows to parse / reverse engineering source files (only Java is supported by now) to generate a PlantUml description, allowing to draw the UML class diagram associated to the source code.
    Downloads: 5 This Week
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  • 21
    Code 2 UML is a tool for constructing UML class diagrams from java .class and .jar files. Requirements: JRE 1.6
    Downloads: 1 This Week
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  • 22
    Pretty Damn Quick (PDQ) analytically solves queueing network models of computer and manufacturing systems, data networks, etc., written in conventional programming languages. Generic or customized reports of predicted performance measures are output.
    Downloads: 4 This Week
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  • 23
    Apricot DB

    Apricot DB

    Database ERD- design tool with Reverse Engineering

    Design/Reverse Engineer/Generate Scripts/Compare Versions of all major databases with "Apricot DB" ERD- tool "Apricot DB" is a database tool for design and analysis of the relational database structure. It represents the DB- structure in the form of editable Entity/Relationship Diagrams (ERD). "Apricot DB" allows to perform reverse engineering on the existing database, as well as to create a new database structure from scratch. Allows to generate the essential DDL- scripts for CREATE/DROP/DELETE- operations based on the current ERD. "Apricot DB" supports two popular ERD notations: the "Crow's Foot" and "IDEF1x". The databases supported by Apricot DB: Oracle; SQL Server; MySQL; MariaDB; PostgreSQL; DB2/DB2 LUW; H2; SQLite Your feedback is appreciated.
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    Downloads: 2 This Week
    Last Update:
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  • 24
    The bflow* Toolbox is an open source tool kit for business process management. The objective of bflow* is to explore new ways and scenarios for the development and use of modelling tools.
    Downloads: 1 This Week
    Last Update:
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  • 25
    Modelio-Open is a project hosting a set of open source extensions (SoaML, SysML and UML Testing Profile) for a previous version (1.2) of the Modelio Free tool . Currently, the lastest version (2.x) of Modelio modeling and generation tool is available at http://modelio.org/downloads/download-modelio.html. All extensions are downloadable at http://forge.modelio.org/projects.
    Downloads: 1 This Week
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