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

  • Find Hidden Risks in Windows Task Scheduler Icon
    Find Hidden Risks in Windows Task Scheduler

    Free diagnostic script reveals configuration issues, error patterns, and security risks. Instant HTML report.

    Windows Task Scheduler might be hiding critical failures. Download the free JAMS diagnostic tool to uncover problems before they impact production—get a color-coded risk report with clear remediation steps in minutes.
    Download Free Tool
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 1
    Pinta

    Pinta

    Simple GTK# Paint Program

    Pinta is a free, open-source program for drawing and image editing. Its goal is to provide users with a simple yet powerful way to draw and manipulate images on Linux, Mac, Windows, and BSD. Use easy drawing tools to draw freehand, lines, rectangles, ellipses, and more. Pinta includes over 35 adjustments and effects for tweaking your images. Use Pinta in your language. Pinta is at least partially translated into over 55 languages. Don't be afraid to experiment, Pinta tracks your full history so you can always undo. Use layers to help separate and group elements of your image for easy editing. Like docked windows? No problem. Floating windows? No problem. You can even mix and match. Original Pinta code is licensed under the MIT License, see license-mit.txt for the MIT License. Code from Paint.Net 3.36 is used under the MIT License and retains the original headers on source files.
    Downloads: 15 This Week
    Last Update:
    See Project
  • 2
    ReacType

    ReacType

    Prototyping Tool for exporting React/Typescript Applications!

    ReacType is a rapid prototyping tool built on Electron that allows users visualize their application architecture dynamically, employing a drag-and-drop canvas display and an interactive, real-time component code preview that can be exported as a React app for developers employing React component architecture alongside the comprehensive type-checking of TypeScript. In other words, you can draw prototypes and export React / TypeScript code! After opening the dmg and dragging ReacType into your Applications folder, ctrl+click the icon and select 'Open' from the context menu to run the app. This extra step is necessary since we don't have an Apple developer license yet. If you are given a warning that Apple could not scan the app. Users can now manage state dynamically within nested components using React Hooks within the state manager tab. For a selected component, users can see a list of available props from the parent, add props, and delete props in case they are not required later on.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 3
    Qfsm

    Qfsm

    A graphical Finite State Machine (FSM) designer.

    A graphical tool for designing finite state machines and exporting them to Hardware Description Languages, such as VHDL, AHDL, Verilog, or Ragel/SMC files for C, C++, Objective-C, Java, Python, PHP, Perl, Lua code generation.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 4
    Draper

    Draper

    Decorators/view-models for Rails applications

    Draper adds an object-oriented layer of presentation logic to your Rails application. Without Draper, this functionality might have been tangled up in procedural helpers or adding bulk to your models. With Draper decorators, you can wrap your models with presentation-related logic to organize and test this layer of your app much more effectively. Imagine your application has an Article model. With Draper, you'd create a corresponding ArticleDecorator. The decorator wraps the model, and deals only with presentational concerns. In the controller, you decorate the article before handing it off to the view. In the view, you can use the decorator in exactly the same way as you would have used the model. But whenever you start needing logic in the view or start thinking about a helper method, you can implement a method on the decorator instead.
    Downloads: 1 This Week
    Last Update:
    See Project
  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
  • 5
    TTFviewer

    TTFviewer

    TTFviewer is a small tool for developers to preview ttf font/icon file

    TTFviewer is a small tool for developers to view and preview various ttf font/icon image formats. It is based on Qt and supports windows/linux/macos.
    Downloads: 18 This Week
    Last Update:
    See Project
  • 6
    Scrolling Game Development Kit 2
    All-in-one program for creating 2D scrolling games. Compile your games into stand-alone .NET executables or customizable C# source code. The IDE and framework are build on OpenTK, which wraps OpenGL, so generated games can be cross-platform.
    Leader badge
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    This is a GUI library designed with the goals to be light, fast, flexible, portable, and to include all features expected from an advanced GUI. It's primarily designed for games with high demands on look and feel.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    Mermaid.js to SVG Converter

    Mermaid.js to SVG Converter

    Visualize the diagrams of your projects

    While coding with AI assist, I noticed bigger projects need something more rigid as context so the AI coder doesn't stray away when I try to add new features. You know, to keeps its memory fresh and not change the stuff that already works. The trick is to ask the AI to write a diagram in Mermaid.js format that solidifies the structure of the project and then use that as context to keep the AI reminded at all times what the project is as a whole. This will prevent it from changing things its not supposed to change. This standalone offline web app will convert that mermaid.js code into a visual SVG image so that YOU as a human will be able to understand what the AI think about the structure of your projects so you can see it and fix any misconceptions until the diagram is correct for your project. (Source code is included in the html itself. Open it in a web browser to use.)
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    Merucav

    Merucav

    A modern digital design tool.

    A modern digital design tool made using Firebase Studio, Next.js, and Perplexity. Live app: https://merucav.netlify.app/ GitHub repository: https://github.com/Northstrix/merucav This app is built on top of https://nofpg.netlify.app and http://noegarsoux.github.io/GradientGen/ The app is fully localized into: ✅ English ✅ Hebrew ✅ Italian ✅ Latin American Spanish ✅ Brazilian Portuguese ✅ Cantonese ✅ Japanese ✅ Korean ✅ Vietnamese ✅ Hindi ✅ Polish ✅ Czech ✅ Hungarian ✅ French ✅ German ✅ Dutch
    Downloads: 1 This Week
    Last Update:
    See Project
  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
    Try it Free
  • 10

    2ERPro

    Un éditeur des diagrammes Entité/Association sous Processing

    Un outil pour éditer des diagrammes Entité/Association sous Processing d'où son nom Editor of Entity/Relationship under PROcessing (2ERPro). L'outil est dans sa première version et loin d'être final. Il vise à démontrer les capacités de Processing plus qu'être éditeur dans le sens propre du terme.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Ant Motion

    Ant Motion

    Animate specification and components of Ant Design

    Ant Motion is a motion design specification from Ant Design, and also provide a complete solution with lots of out-of-box animations for your React applications. Use Ant Motion to quickly use animations in the React framework. We offer single, combined and complete animations solutions. In the React framework, you only need a simple piece of code to achieve animation effects, which can improve your work efficiency. With more friendly interaction, let the animate shuttle between different elements, so that the product can better talk to the user.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12

    Automalator

    State Dependency deconstructor and mapper for C source code.

    Flowcharts not telling you what you want to know about some C source code? Try a State Dependency map! Every C source file is an implemention of a state machine. Implicit in the definition of a state machine is a network of dependencies between the states. The Automalator * deconstructs the C code into the core state machine * collates the transactions into the dependency net * generates a diagram-format file with the states and dependencies as the nodes and edges. Pre-requisites * Perl - tested with versions 5.12.3, 5.14.2 and 5.20.2, Windows, Linux and MAC * Get the Automalator by downloading the zip, or checking out or exporting the SVN trunk * copy the source code of interest into "project.c" * windows - double-click "src2map.bat" * linux & MAC - navigate the command line to the "project" folder, then run "src2map.sh" * open "project.gml" file with diagramming software.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    CSS Inspiration

    CSS Inspiration

    Curated collection of interesting, creative, or inspiring CSS effects

    CSS-Inspiration is a living gallery of modern CSS effects and components that highlights what’s possible with pure CSS and minimal markup. The collection ranges from micro-interactions and loaders to 3D transforms, complex backgrounds, hover states, and text effects, each presented as a small, self-contained demo. Source code is front and center, encouraging developers to study, copy, and tweak snippets for their own projects. Many examples lean on contemporary features—custom properties, filters, blend modes, gradients, and keyframes—serving as both inspiration and a practical cookbook. Because each demo focuses on a single idea, it’s an effective way to learn new techniques without wading through a full framework. The project thrives on experimentation and community interest, making it a frequent reference for designers, front-end engineers, and educators who want visually striking yet lightweight solutions.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Javascript animation authoring environment. A WYSIWYG cross-platform desktop application using jQuery to animate XHTML and HTML elements. Its built in XUL.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    FC Designer is a standalone flowchart designer written in Java.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    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
    Last Update:
    See Project
  • 17
    Haydar Color Cop is a multi-purpose color picker for web designers and programmers. It features an eyedropper, magnifier, variable magnification levels
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Kerach

    Kerach

    A Makeshift Text Shaderer

    A Makeshift Text Shaderer GitHub repository: https://github.com/Northstrix/kerach Check it out at: https://kerach.netlify.app/
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Kerach Go

    Kerach Go

    A petite text shaderer whose entire code fits into a single html file

    A petite text shaderer whose entire code fits into a single html file. GitHub repository: https://github.com/Northstrix/kerach-go Link: https://northstrix.github.io/kerach-go/ The app is fully localized into: ✅ English ✅ Hebrew ✅ Italian ✅ Latin American Spanish ✅ Brazilian Portuguese ✅ Japanese ✅ Cantonese
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Nof Angular

    Nof Angular

    An Angular version of the Nof color palette generator.

    An Angular version of the Nof color palette generator. GitHub repository: https://github.com/Northstrix/nof-angular Link: https://nof-angular.netlify.app/
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    React Color

    React Color

    Color pickers from Sketch, Photoshop, Chrome, Github, and Twitter

    13 different pickers, for Sketch, Photoshop, Chrome and many more. Make your own, use the building block components to make your own. Color controls what color is active on the color picker. You can use this to initialize the color picker with a particular color, or to keep it in sync with the state of a parent component. Pass a function to call every time the color is changed. Use this to store the color in the state of a parent component or to make other transformations. Pass a function to call once a color change is complete. To make a custom color picker, create a top-level component that will act as the bridge with the CustomPicker high order component. Wrap the export with the CustomPicker function. Every color picker provided is made up of a collection of helper components. Those components are accessible for you to use to make a custom color picker. Use EditableInput to display an input / label that acts as the single source of truth until the input is blurred.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Modular synthesizer/effect designer and interpreter. Similar to Max/MSP and Reaktor.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Stingray provides a robust Object Oriented Programing framework for Javascript. Stingray's classes lessen development time for graphic/multi-media designers and web developers and focus on new projects, rather than re-invent the wheel.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    WYMstyle is a CSS (Cascading Style Sheet) framework for web designers. It allows to design web sites faster, using robust CSS modules, which are already tested in a large array of web browsers.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Web 2.0 environment for collaborative and extensible design of object interconnection diagrams like UML, networks, circuits and other graph based diagrams. Client: Web-based (AJAX / Dojo Toolkit) Server: JEE Application (Struts Framework)
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • Next