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

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
    Start Free
  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 1
    WhiteStarUML

    WhiteStarUML

    UML modeling tool derived from StarUML compatible with Windows 7-10

    WhiteStarUML is a fork of StarUML 5.0 providing a number of bug fixes and improving compatibility with modern operating systems.
    Leader badge
    Downloads: 360 This Week
    Last Update:
    See Project
  • 2
    NClass
    NClass is a free tool to easily create UML class diagrams with full C# and Java language support.
    Leader badge
    Downloads: 80 This Week
    Last Update:
    See Project
  • 3
    The Object-Role Modeling (ORM) standard version 2, associated schemas and generation tools, and a reference implementation in the form of the Natural Object-Role Modeling Architect for Visual Studio (NORMA) product.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 4
    The Introspector enables the programming tools that deal with source code such as the compiler to communicate in a standard and neutral manner reducing the accidental cost of programming. http://github.com/h4ck3rm1k3/
    Downloads: 19 This Week
    Last Update:
    See Project
  • Photo and Video Editing APIs and SDKs Icon
    Photo and Video Editing APIs and SDKs

    Trusted by 150 million+ creators and businesses globally

    Unlock Picsart's full editing suite by embedding our Editor SDK directly into your platform. Offer your users the power of a full design suite without leaving your site.
    Learn More
  • 5
    A toolkit to design applications using design patterns, with facility to generate code, and reverse engineering. Drag and Drop facility to create UML Class diagrams Support to write custom plug-ins for code generators and reverse engineering.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 6
    PopED (Population Experimental Design) is a software tool for computing optimal experimental designs. The software has been developed with an emphasis on drug trials based on population models (non-linear mixed effects models).
    Downloads: 5 This Week
    Last Update:
    See Project
  • 7
    DataLG is a Data Access Layer (DAL) generator. Create stored procedures, views, and tables on the database side, then use DataLG to create an assembly (and its source) to interact with them. Works with: Ms Sql Server, Sqlite 3, Mysql 4-5, and PostgreSQL.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 8
    *** This tool has been superseded by ".Net Architecture Checker" at https://sourceforge.net/projects/dotnetarchitect/ ***. (ILDASM-Dependency Checker checks code dependencies in .Net projects to ensure a stable architecture).
    Downloads: 4 This Week
    Last Update:
    See Project
  • 9
    This project will allow a .NET(C#) developer to have a component that will interact with OpenXml file. For example *.docx file with are used by Office 2007. So that these files can be changed easily within code.
    Downloads: 4 This Week
    Last Update:
    See Project
  • Build Securely on Azure with Proven Frameworks Icon
    Build Securely on Azure with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 10
    Draw flowcharts, save them, load them, simple.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    StormFactory is a light, streamlined ORM code generator for C#/SQL Server apps. The project's aim is minimize the learning curve, maintain a tiny memory footprint, and to generate extremely portable, scalable, easily maintained and dependency-free code.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    A graphical designer for Visual Studio 2005. The plugin provides drag and drop composition of an object model, from the Server Explorer. All required .hbm.xml hibernate mapping files are generated, along with the required entity class source files (C#).
    Downloads: 2 This Week
    Last Update:
    See Project
  • 13
    FluidEarth
    Open source development for FluidEarth (https://fluidearth.net/default.aspx) which supports the OpenMI Standard (http://openmi.sourceforge.net) Here are OpenMI Association approved applications.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14
    a framework library with a template method interface and inheritable classes for an executable process design which produces an executable which is both a GUI and a console application. It provides multi-threading for work items of the provider process .
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    Amber.net is a lightweight R/O mapper framework for .net, which easy database access without XML descriptors. It uses reflection and annotations for the CRUD cycle of c# objects. Amber.net is dot net version of original java version of Amber
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    BianLian Framework plan to establish a cross-platform, cross-language, JSF .NET like solution. To make all the GUI (both JSF .net and so on) INDEPENDENT to implementation. PS, BianLian is the famous Chinese art with about 1000 years history.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    CSLA Generator generates classes based on the CSLA.NET framework developed by Rocky Lhotka (www.lhotka.net). It uses the freeware version Codesmith (TM) to parse templates and generate VB.Net and C# code based on the metadata created inside the app.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    CUAHSI ODM API implements in Stored Procedures for MySQL and SQLServer, ODM web api implement REST interface, provide internet user full operation on remote ODM via the internet,Joe Hu MapWindow software lab,Idaho State Univer
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Cooperator is on the one hand, a base class library for Object Relational Mapping, ORM, and by another one, a tool of code generation for for the MS.Net 2.0/3.0, using Business Objects and Stored Procedures. DAL, ORM, UOW, FACADE, MAPPER, MODELING ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    DCS3D will be a semi parametric and freeform 3d modelling and automated 2d output add on tool kit for AutoCAD. These tools will aid in the design and detailing of structural elements with the main focus being on structural steel and associated struct
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    A multi-language IDE written entirely with C#.NET. My goals include giving developers a framework that will allow them to add new languages, provide diagramming services to support language modeling and visualization (eg UML Class Diagrams, etc).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    A UML tool that is designed for tablet user.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    EASE Designer
    EASE - Architect Solutions Easily is a UML-Modeller with a WPF user-friendly interface. It can export the solution done with EASE to C# or C++ files (and so many languages that you can define) containing objects made in EASE. Actual version is 1.0.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    The Project aims to fulfill the following specific objectives of Computer Education, Supportive Education and Information Service Delivery, while in operation.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    FailIRC is an IRC client written in C#. It is meant to be a lightweight but feature-rich way to use IRC.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • Next
Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.