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.

  • The All-in-One Commerce Platform for Businesses - Shopify Icon
    The All-in-One Commerce Platform for Businesses - Shopify

    Shopify offers plans for anyone that wants to sell products online and build an ecommerce store, small to mid-sized businesses as well as enterprise

    Shopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.
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  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • 1
    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: 17 This Week
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  • 2
    crystal-facet-uml

    crystal-facet-uml

    Create consistent Uml diagrams

    As software architect, you create a set of diagrams describing use-cases, requirements, structural views, behavioral and deployment views. crystal_facet_uml keeps element names and element hierarchies consistent. It exports diagrams in svg, pdf, ps and png formats to be used in text processing systems like docbook, html, latex. This tool runs on your local PC and is based on glib, gdk, gtk, cairo, pango, sqlite.
    Downloads: 15 This Week
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  • 3
    pgDesigner is a Datamodel designer for PostgreSQL written in Gambas language.
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    Downloads: 2 This Week
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  • 4
    JavaStructurizer

    JavaStructurizer

    NSD graphical editor, for Java development and rev-engineering

    The program JStruct (JavaStructurizer) allows creation, editing and reverse engineering of Java code using structured blocks (NSD: Nassi-Shneiderman Diagrams ). JStruct provides an interactive graphical editor with copy, move, zoom, expand etc. Comments for each block ( javadoc and inline ), import and export of java source files. JStruct exports images in various raster and vector formats, and it offers high interactivity: tooltips and context menus, undo and redo functionality in a very intuitive GUI. Usages: - Development and Learning: create from scratch a new Java program, - Reverse engineering: the block structure facilitates the understanding of the code. - Documentation: NSD images can be added to javadoc. - Add-on tool: JStruct can be added to an IDE (eg JCreator ) - Java Pretty printer: to import then export a java file formats the code.
    Downloads: 2 This Week
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  • Simple, Secure Domain Registration Icon
    Simple, Secure Domain Registration

    Get your domain at wholesale price. Cloudflare offers simple, secure registration with no markups, plus free DNS, CDN, and SSL integration.

    Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
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  • 5
    PHPCallGraph generates static call graphs for PHP source code using the CodeAnalyzer of the InstantSVC project and the DOT tool. The graphs can be leveraged to gain a better understanding of large software systems or even to debunk design flaws in them.
    Downloads: 1 This Week
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  • 6
    ADX is an XML schema for the representation of software architectural descriptions. The ADX project also includes supporting tools. ADX is designed to support the creation, generation, and transformation of documents conforming to the IEEE 1471 standard.
    Downloads: 0 This Week
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  • 7
    ATS4 AppModel is an application flow design tool supporting application specification work, model based testing and test script generation. It provides simple interface to manage complex models. ATS4 AppModel is part of Nokia ATS tool family.
    Downloads: 0 This Week
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  • 8
    Developed in KBQuest Ltd, Compass framework is an architectural pattern for web application. It provides guidelines for developers to avoid misuse of frameworks.
    Downloads: 0 This Week
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  • 9
    Contract++

    Contract++

    Contract Programming Library for C++

    **** THIS LIBRARY WAS MOVED INTO Boost **** New location: https://github.com/boostorg/contract C++ Contract Programming (a.k.a. Design by Contract or DbC). All Eiffel features supported: subcontracting, postcondition old and result values, optional contract compilation, customizable action on assertion failure, block invariants, loop variants, etc. Plus virtual specifiers, concept checking, named parameters. See: http://contractpp.sourceforge.net
    Downloads: 0 This Week
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  • Connect every part of your business to one bank account Icon
    Connect every part of your business to one bank account

    North One is a business banking app that integrates cash flow, payments, and budgeting to turn your North One Account into one Connected Bank Account

    North One is proudly built for small businesses, startups and freelancers across America. Make payments easily, keep tabs on your money and put your finances on autopilot through smart integrations with the tools you’re already using. North One was built to make managing money easy so you can focus on running your business. No more branches. No more lines. No more paperwork. Get complete access to your North One Account from your phone or computer, wherever your business takes you. Create Envelopes for taxes, payroll, rent, and anything else automatically.
    Get started for free.
  • 10
    The CoreASM project focuses on the design of a lean executable ASM (Abstract State Machines) language, in combination with a supporting tool environment for high-level design, experimental validation and formal verification of abstract system models.
    Downloads: 0 This Week
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  • 11
    This tool enables you to produce a LaTeX (standard, no extension required) report for database objects (tables, views, indexes, functions, primary/foreign keys, columns, types, keywords, system functions) thanks to the JDBC Api.
    Downloads: 0 This Week
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  • 12
    Tracks project details using a variety of data options. Primarily designed to contain and organize software requirements in a multi-project, multi-user, environment using a networked SQL compliant database management system while tracking changes.
    Downloads: 0 This Week
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  • 13

    InPUT

    IoC container for the configuration and design for experimental design

    InPUT offers a descriptive and programming language independent format and IoC (Inversion of Control) container for the configuration and design of computer experiments. Code and more info can be found on github: http://github.com/feldob/InPUT
    Downloads: 0 This Week
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  • 14
    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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  • 15
    project aimed towards design and subsequent implementation of compilers for new programming language
    Downloads: 0 This Week
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  • 16
    Lifecycle Manager allows software engineers to manage all stages in the development lifecycle without losing any knowledge of decisions and changes. This system is a groupware knowledge management system for software development.
    Downloads: 0 This Week
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  • 17
    LXD intends to be a documentation system for large OpenSource projects. It mixes low level information (source code symbols) with high level information (modules, abstract data types, algorithms), by using well defined XML documents.
    Downloads: 0 This Week
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  • 18
    Small add-on library for Struts that minimizes coupling between pages. It is based on a new software architecture vision using pages as independent components.
    Downloads: 0 This Week
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  • 19
    This is a modeling tool generating code from activity diagrams. The main goal is to achieve a good code generation. I would like to have different possibilities like HTML mapping from diagrams and Java code generation (maybe others) chosen by the user.
    Downloads: 0 This Week
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  • 20
    Downloads: 0 This Week
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  • 21
    NFitnesse is an emulation of the popular Fitnesse Wiki and Test server that can be hosted under IIS
    Downloads: 0 This Week
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  • 22
    A text-based editor to dynamically create UML Sequence Diagrams.
    Downloads: 0 This Week
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  • 23
    NetBeans Modules Dependencies

    NetBeans Modules Dependencies

    Display NetBeans Module Dependencies

    Display in a UML-like diagram the dependencies of applications developed in NetBeans. Originally meant only to display module dependencies of NetBeans Rich Client Platform applications, thanks to the platform itself, it can display dependencies of "plain" and Maven-based Java projects. To display the dependencies, a new action is made available in the 'Source' menu and in the toolbar. The generated graphs can be saved as images or exported in PlantUML or Gephi formats.
    Downloads: 0 This Week
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  • 24
    The Open Code Quality Project offers Static Code Analyses as an free Online-Service for Open Source Code. Simply send your code, start the scan, receive the results.
    Downloads: 0 This Week
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  • 25
    Development of traces for VDM. A trace statement is used to enhance a VDM models quality by providing an easy way to describe statements used to perform regression testing on the model. This project is related to the OvertureTool project.
    Downloads: 0 This Week
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