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

  • Paessler: Easy to Use With Enterprise Power. Free Trial Icon
    Paessler: Easy to Use With Enterprise Power. Free Trial

    A low-code dashboard makes monitoring intuitive for any admin, while scripting and custom sensors give experts full control.

    You shouldn't have to choose between a monitoring tool that's easy to use and one that's powerful enough for a complex environment. PRTG's low-code interface lets any admin build dashboards, set alerts and monitor devices without scripting, while custom sensors and full API access are there when your team needs deeper control. One platform, no compromise. Download a free 30-day trial now.
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  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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  • 1
    DB Designer Fork
    DB Designer Fork is a fork of the fabFORCE DBDesigner 4. It integrates entity relationship design,front-end (you can run queries) and SQL exporting.DB Designer Fork generates SQL scripts for Oracle, SQL Server, MySQL, FireBird, SQLite and PostgreSQL. A port to FPC/Lazarus is currently in progress at: https://github.com/joaopauloschuler/dbdesigner-fork
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    Downloads: 163 This Week
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  • 2

    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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  • 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: 2 This Week
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  • 4

    EMFTrace

    Repository for dependencies between software design artefacts

    EMFTrace extends the EMFStore repository by elicitating dependencies between related models of different modeling and programming languages. The explicit recording and modeling of different types of dependencies as traceability links shall support evolutionary changes by impact analysis, early evaluation of quality flaws, and better comprehension. It is an open source project to support the practical application of research results regarding development methods for evolution of software architectures and for software reengineering. EMFStore is used for integrating models and source code from different tools and vendors, while EMFTrace provides means for dependency detection, dependency visualization, and change impact analysis.
    Downloads: 4 This Week
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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  • 5
    EasyStruts provide advanced support for developing Struts web applications with Eclipse . keywords: MVC, Struts, Eclipse, Java
    Downloads: 1 This Week
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  • 6
    Duplicated source code can harm maintainability of software systems. Duplo is a tool to find duplicated code blocks in large C, C++, Java, C# and VB.Net systems.
    Downloads: 1 This Week
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  • 7
    Fourth generation database designer and code-generator for educational purposes and speeding-up database designing and creating work.
    Downloads: 1 This Week
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  • 8
    Executable UML command-line interpeter and metamodel. Intended future import-export compatibility for proprietary xtUML and iUML metamodels and model compilers. Emphasis on analysis/implementation separation and parallel processing implementations.
    Downloads: 0 This Week
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  • 9
    Buildap is a Visual Component Based Development framework. It is available as standalone tool as well as Netbeans and Eclipse plugins. SVG viewer/editor and Diagram Editor are also available. See Buildap powered project at http://e-records.buildap.com/.
    Downloads: 0 This Week
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  • $300 Free Credits to Build on Google Cloud Icon
    $300 Free Credits to Build on Google Cloud

    New customers can spin up VMs, build with AI, and query data at no cost.

    Put your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
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  • 10
    A openArchitectureWare based Generator for deriving a WS-Agreement document from a formal description of a (Web-)Service and its associated assertions (SLO) to Quality Of Service (QoS). You can use predefined QoS parameters as well as introduce new ones.
    Downloads: 0 This Week
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  • 11
    Djinn is a java bytecode static analyser. It can produce various dependencies graphs of arbitrary granularity (jars, classes, packages, etc.) and provide a flexible query engine. Update 15 apr 2013: I resumed developpement recently, project has moved to https://github.com/fabienbk/djinn
    Downloads: 0 This Week
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  • 12
    Dzine is a case tool for OOAD. Draw use case,interaction,class,deployment,ER Diagrams. Code generation in C++ and java and for SQL. Reverse engg design from code. Just put in your Java or C++ code and generate class diagrams.
    Downloads: 0 This Week
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  • 13
    Plugin for the CASE tool Fujaba. It enables the use of Velocity templates in activity graphs. Primary usage: Code generation in model transformations in association with the plugin SPin.
    Downloads: 0 This Week
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  • 14
    A minimalistic CASE tool that will allow end-users to analyze their graphs (plain-old graphs, UML diagrams, ERDs, etc.) by applying various graph theory functions to them (such as a shortest path algorithm or a spanning tree algorithm.)
    Downloads: 0 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: 0 This Week
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  • 16
    Open Source CASE Tool made in Java. Allows Code Generation, UML modeling an BD design
    Downloads: 0 This Week
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  • 17
    Hayta-UML is a Web2.0 UML tool, that allows users to draw UML diagrams. A core design decision is to have a native version-control inside the application.
    Downloads: 0 This Week
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  • 18
    *** 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: 0 This Week
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  • 19
    Business analysys/documentation management tool, inspired by the book "Writing Effective Use Cases" by Alistair Cockburn. Key wanted features are:managing & browsing versionable project requirements,use-cases,screen specs,docs generation,work with JIRA
    Downloads: 0 This Week
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  • 20
    Jupe is a UML Plugin for Eclipse. It provides support for the creation of UML class diagrams, Java code generation and reverse engineering. Jupe is based on the GEF and UML2 frameworks and supports Eclipse 3.2.
    Downloads: 0 This Week
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  • 21
    Downloads: 0 This Week
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  • 22
    MyBPMN is the free BPM(BPMN) Solution that will enable you to model, execute and improve your business processes through a graphic environment and without the need of programming.
    Downloads: 0 This Week
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  • 23
    Nmdepend is a lightweight 'link-time' dependency analyzer for C++. It uses object files and libraries instead of source-code as input. It can help to manage 'cross-directory' dependencies. Dependencies can be visualized in combination with Graphviz.
    Downloads: 0 This Week
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  • 24
    A simple visual editor for drawing OPJ models; these models represents an extension to the classic Petri-net diagram; they were developed before the unification of OO methodologies and the relative release of the first UML specification.
    Downloads: 0 This Week
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  • 25
    ObjectBuilder2

    ObjectBuilder2

    C++ CASE tool, full life cycle code generator

    ObjectBuilder is a C++ code generation CASE tool (CASE, code generation, refactoring, documentation generation). It lets you create, manipulate and navigate classes, class relations, class members and class methods at a high level of abstraction. ObjectBuilder dramatically simplify work with C++ project architecture. I use it and think that tree OO interface targeted to C++ more fast and power than UML class diagrams. ObjectBuilder perfectly organize C++ header files with any level of complexity. Even if you use loop-references if OO hierarchy, you need include only one project-level header file. You can easy modify and refactore existing project with cut/copy/paste ANY object (from Method Argument to entire Project) within project and between ObjectBuilder projects. ObjectBuilder is not an IDE tool. It is portable two-way architect code-generation tool.
    Downloads: 0 This Week
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