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.

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  • 1
    Featureless Linux Library

    Featureless Linux Library

    Linux Library on top of Libc focusing on long term support.

    When computer power increases, programmers generally add more "features", thus making any performance gains in new hardware negligible. This project is an attempt to develop a library above libc that breaks out of this terrible loop.
    Downloads: 5,450 This Week
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  • 2
    Font Awesome

    Font Awesome

    Get vector icons and social logos for your website or blog

    Font Awesome was created in a successful Kickstarter and is an easy way for web developers to add icons and logos to their website. There is both a free version and a pro version for extra features and icons. You can support the developers by buying a custom FontAwesome T-Shirt! https://fontawesome.com/shirts
    Downloads: 151 This Week
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  • 3
    MicroG RE

    MicroG RE

    GmsCore fork for ReVanced with Material You, features and improvements

    GmsCore fork designed for ReVanced with Material You design, along with some improvements and features.
    Downloads: 65 This Week
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  • 4
    FineTune

    FineTune

    FineTune, a macOS menu bar app to control volume for each app

    FineTune is a macOS menu bar application that gives users fine-grained control over system audio by allowing them to adjust volume levels for individual applications independently, route audio streams to different output devices, and apply personalized equalizer settings. It fills a gap in macOS audio control by providing more advanced routing and audio shaping capabilities than the default system controls, making it useful for power users, audio professionals, and anyone needing precise management of their sound environment. Through a clean, minimal interface accessible from the menu bar, FineTune lets users isolate and balance application volumes, assign specific outputs (like headphones versus speakers), and tweak equalization to enhance or tailor audio based on content or personal preference. Its integration into the OS workflow means that these adjustments persist across sessions and respect the user’s choices without requiring constant interaction with deeper system settings.
    Downloads: 55 This Week
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  • 5
    Penpot

    Penpot

    The first open source design and prototyping tool

    Penpot is the first open-source design and prototyping platform for product teams that allows true collaboration between designers and developers. What will designers and developers find in Penpot? - Powerful UI tool for the team. All stakeholders can access a complete set of interactive prototypes, design systems, components, feedback loop and pixel designs. - Design and development collaborate for real. Penpot brings both code-ready design capabilities and the familiarity of developer tools to the same workspace. - Open Standards for the design work. This means zero vendor lock-in and high interoperability. - Unique Flex Layout that allows you to create flexible designs that can adapt automatically
    Downloads: 46 This Week
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  • 6
    QuickPic Gallery Mod

    QuickPic Gallery Mod

    QuickPic Gallery Mod

    QuickPic Gallery Mod.
    Downloads: 43 This Week
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  • 7
    Thaw

    Thaw

    Menu bar manager for macOS 26

    Thaw is a macOS menu bar management app focused on hiding, showing, and organizing menu bar items, with the broader goal of being a versatile customization toolkit rather than a single-purpose hider. It is a fork of the Ice project created to keep the concept actively maintained, fix bugs, and stay compatible with the latest macOS releases, especially newer versions where menu bar behavior and APIs have changed. At its core, Thaw provides multiple ways to reveal hidden items (hover, click empty space, scroll or swipe) and can automatically rehide items to keep the menu bar clean without constant manual toggling. It also supports a dedicated “always-hidden” section, drag-and-drop arrangement of items, and options to display hidden items in a separate bar, which can be particularly useful on MacBooks with notches.
    Downloads: 22 This Week
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  • 8
    WhiteSur Icon Theme

    WhiteSur Icon Theme

    MacOS Big Sur style icon theme for linux desktops

    WhiteSur-icon-theme is a Linux icon theme that faithfully recreates the macOS Big Sur icon set’s look and feel, giving your desktop a sleek, polished visual identity inspired by Apple’s design language. It includes a broad selection of icons for many popular applications, utilities, and system features, ensuring most graphical elements on your desktop adopt the unified appearance. The theme is designed to integrate seamlessly with GTK- and icon-themed desktops, helping users achieve a consistent aesthetic across panels, launchers, and app menus. Installation scripts provide easy methods to deploy the icons into your system or local user directory, and options let you tweak the icon style or destination. Because it mimics a well-known visual design, it’s particularly popular among users who want to bring macOS-like polish to their Linux desktops without sacrificing performance.
    Downloads: 21 This Week
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  • 9
    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.
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    Downloads: 130 This Week
    Last Update:
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  • 10
    WhiteSur GTK Theme

    WhiteSur GTK Theme

    MacOS like theme for all gtk based desktops

    WhiteSur-gtk-theme brings a macOS Big Sur–inspired look to Linux desktops by providing a polished GTK theme with light and dark variants, rounded shapes, and refined translucency. It includes assets and installer scripts to apply the theme across GTK applications and desktop shells that support GTK theming, aiming for a cohesive, high-contrast interface. The project pays attention to details like window controls, titlebars, selection states, and widget hover effects so apps feel consistent from toolkits to system settings. Configuration options typically allow tweaking accents and choosing variants that match different desktop environments and icon sets. Documentation guides users through installing prerequisites, applying the theme, and resolving common edge cases across distributions. For Linux users who prefer Apple’s visual style but want open platforms, WhiteSur offers a maintained, community-driven path to a modern, visually unified desktop.
    Downloads: 20 This Week
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  • 11
    Orchis theme

    Orchis theme

    Material Design theme for GNOME/GTK based desktop environments

    Orchis-theme is a polished, Material Design–inspired GTK theme for GNOME and other GTK-based Linux desktop environments that gives your system a modern, unified visual style with soft gradients, consistent icons, and refined widget styling. It’s built to bring a high-quality aesthetic to applications, menus, dialogs, and control elements, making desktops feel more cohesive and attractive compared to default themes. The theme supports multiple color variants and sizing options, letting users tailor the look and feel to their personal preferences and desktop layouts. Installation scripts make it easy to apply the theme across supported environments and also handle compatibility with different GTK versions. Because it follows Material Design principles, Orchis strikes a balance between simplicity and visual depth, giving interfaces a fresh and contemporary appeal.
    Downloads: 19 This Week
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  • 12
    VARLET

    VARLET

    A Vue3 component library based on Material Design 2 and 3

    Varlet UI is a Material design component library developed based on Vue3, supporting mobile and desktop, developed and maintained by varletjs organization. Support Typescript, import on demand, dark mode, theme customization, internationalization, and provide VSCode plugin to ensure a good development experience.
    Downloads: 17 This Week
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  • 13
    ImThemes

    ImThemes

    Dear ImGui style browser and editor written in Nim

    ImThemes is a collection of themes for Dear ImGui, allowing developers to customize the appearance of their graphical user interfaces with predefined styles.
    Downloads: 13 This Week
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  • 14
    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: 13 This Week
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  • 15
    Materialize

    Materialize

    Materialize, a web framework based on Material Design

    Materialize, a CSS Framework based on Material Design. Using VanillaJS and as less dependencies as possible to keep it fast and simple. We use TypeScript since it builds upon JavaScript and enhances the type- and code safety. You don't have to learn or integrate any new or crappy stuff. The goal here is to stick to the roots. Just copy and paste from the documentation and you are good to go. Most of the Features work event without JavaScript. Components should be useable by mobile devices and easily accessible by keyboard too. Try it out. User-centric approach with established design principles mainly from Google's Material guidelines. Our Components should work on nearly every device with a monitor. User-centric approach with many members all around the world, which helps bring Materialize forward and improve usability for everyone on the web. You can be a part too.
    Downloads: 11 This Week
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  • 16
    css-doodle

    css-doodle

    A web component for drawing patterns with CSS

    <css-doodle /> is based on Shadow DOM v1 and Custom Elements v1. You can use it on all major browsers right now without polyfills. The component will generate a grid of divs by the rules (plain CSS) inside it. You can easily manipulate those cells using CSS to come up with a graphic pattern or an animated graph. The limit is the limit of CSS itself. Download the latest version or include it directly from a CDN. You can also install it from npm and import the module in JavaScript. The syntax of CSS-doodle is based on CSS and provides several extra utility functions and shorthand properties. The number of rows and columns in the grid is defined by the grid attribute on the element, ranging from 1 to 64. Its default is 1x1 when no value or 0 is given. The row or column is limited up to 4096 only when the grid is 1-dimensional.
    Downloads: 10 This Week
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  • 17
    Material Dashboard 2

    Material Dashboard 2

    Open Source Bootstrap 5 Material Design Admin

    The most complex and innovative Dashboard Made by Creative Tim. Check our latest Freebie Bootstrap 5 Dashboard with a fresh, new design inspired by Google's Material Design 2. Designed for those who like bold elements and beautiful websites, Material Dashboard 2 is ready to help you create stunning websites and web apps. We created many examples for pages like Sign In, Notifications, Profile, and so on. Just choose between a Basic Design, an illustration, or a cover and you are good to go. Material Dashboard 2 is built with over 60 frontend individual elements, like buttons, inputs, navbars, nav tabs, cards, or alerts, giving you the freedom of choosing and combining. All components can take variations in color, which you can easily modify using SASS files and classes.
    Downloads: 9 This Week
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  • 18
    System Design Primer

    System Design Primer

    Learn how to design large-scale systems

    System Design Primer is a curated, open source collection of resources that helps engineers learn how to design large-scale systems. The project is structured as a comprehensive guide covering core system design concepts, trade-offs, and patterns necessary for building scalable, reliable, and maintainable systems. It offers both theoretical foundations—such as scalability principles, the CAP theorem, and consistency models—and practical exercises, including real-world system design interview questions with sample solutions, diagrams, and code. The repository also contains study guides for short, medium, and long interview timelines, allowing learners to focus on both breadth and depth depending on their preparation needs. In addition, it includes flashcard decks designed to reinforce learning through spaced repetition, making it easier to retain key system design knowledge.
    Downloads: 9 This Week
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  • 19
    MaterialDesignInXamlToolkit

    MaterialDesignInXamlToolkit

    Google's Material Design in XAML & WPF, for C# & VB.Net

    This toolkit brings Google’s Material Design aesthetic to WPF applications. It provides a comprehensive set of styles, themes, palettes, icons, and custom controls like cards, dialogs, clock, and FABs. Supports runtime palette switching, integrates with MahApps.Metro and Dragablz, and includes demo apps and documentation. Installable via NuGet for easy integration into C# or VB.NET WPF projects.
    Downloads: 8 This Week
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  • 20
    Yapsy

    Yapsy

    A fat-free DIY Python plugin management toolkit.

    A simple framework for plugin system development with as few dependencies as possible. It is designed to offer a set of very lean classes (plugin managers and plugin interfaces) which can easily be customised by decoration or inheritance. Yapsy v1.x supports Python2 and Python3. Its source package contains versions of the sources for both pythons. Yapsy v2+ supports Python 3 and it's development happens now on https://github.com/tibonihoo/yapsy/ Usage samples, advices and developer's documentations are available on the main website.
    Downloads: 67 This Week
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  • 21
    Keychron Hardware Design

    Keychron Hardware Design

    Industrial design files for Keychron keyboards and mice

    The Keychron-Keyboards-Hardware-Design project is a source-available repository that provides production-grade industrial design files for a wide range of Keychron keyboards and mice. It includes over one hundred device models with detailed CAD assets, allowing users to explore real-world hardware engineering practices and understand how commercial peripherals are constructed. The repository contains multiple file formats such as STEP, DXF, DWG, and PDF, enabling compatibility with professional CAD software and fabrication workflows. It is designed both as an educational resource and as a foundation for creating compatible accessories, giving users the ability to measure, remix, and prototype hardware components. The project encourages experimentation and learning by providing structured documentation, guides, and model organization across product families.
    Downloads: 7 This Week
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  • 22
    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.
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    Downloads: 40 This Week
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  • 23
    98.css

    98.css

    A design system for building faithful recreations of old UIs

    98.css is a CSS library for building interfaces that look like Windows 98. This library relies on the usage of semantic HTML. To make a button, you'll need to use a <button>. Input elements require labels. Icon buttons rely on aria-label. This page will guide you through that process, but accessibility is a primary goal of this project. You can override many of the styles of your elements while maintaining the appearance provided by this library. Need more padding on your buttons? Go for it. Need to add some color to your input labels? Be our guest. This library does not contain any JavaScript, it merely styles your HTML with some CSS. This means 98.css is compatible with your frontend framework of choice.
    Downloads: 6 This Week
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  • 24
    SkyWater PDK

    SkyWater PDK

    Open source process design kit for usage with SkyWater Technology

    The SkyWater PDK is the first broadly available open-source process design kit for a commercial-grade CMOS node, enabling researchers, startups, and students to design real ASICs without proprietary NDAs. It provides the essential artifacts for digital and analog flows: SPICE models, DRC/LVS rules, extraction decks, and technology files for open tools like Magic and KLayout. Standard-cell libraries and IO pads are included so digital designers can use open synthesis and place-and-route to reach a manufacturable GDS. Because the PDK is open, it becomes a common target for community reference designs, open tapeouts, and teaching curricula. Documentation and example flows show how to assemble complete toolchains, from RTL to sign-off, using open EDA components. The project effectively lowers the barrier to custom silicon, catalyzing an ecosystem around an accessible 130-nm process.
    Downloads: 6 This Week
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  • 25
    GRUB2 THEMES

    GRUB2 THEMES

    Modern Design theme for Grub2

    GRUB2 THEMES is an open-source collection of modern, visually appealing themes for the GRUB2 bootloader that enhance the graphical interface users see during system boot on Linux machines. Instead of the plain default GRUB menus, this project offers a set of sleek theme variants with custom backgrounds, icons, layouts, and resolutions that bring a more polished aesthetic to the early boot experience. Installation scripts provided in the repository automate applying themes to a system’s GRUB configuration, including options for different resolutions and screen sizes, and users can add custom backgrounds or tweak configurations. The repository is licensed under GPL-3.0 and has an active user base, making it one of the more popular sources for bootloader theming. It includes assets, configurations, and helper tools to simplify adoption, and supports variant customization so users can tailor the look to their preferences.
    Downloads: 5 This Week
    Last Update:
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