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.

  • Application Monitoring That Won't Slow Your App Down Icon
    Application Monitoring That Won't Slow Your App Down

    AppSignal's Rust-based agent is lightweight and stable. Already running in thousands of production apps.

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    Go From AI Idea to AI App Fast

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  • 1
    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: 161 This Week
    Last Update:
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  • 2
    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: 67 This Week
    Last Update:
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  • 3
    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: 61 This Week
    Last Update:
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  • 4
    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: 40 This Week
    Last Update:
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  • Stop Storing Third-Party Tokens in Your Database Icon
    Stop Storing Third-Party Tokens in Your Database

    Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.

    Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
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  • 5
    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: 33 This Week
    Last Update:
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  • 6
    QuickPic Gallery Mod

    QuickPic Gallery Mod

    QuickPic Gallery Mod

    QuickPic Gallery Mod.
    Downloads: 32 This Week
    Last Update:
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  • 7
    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: 126 This Week
    Last Update:
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  • 8
    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: 19 This Week
    Last Update:
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  • 9
    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: 16 This Week
    Last Update:
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  • Go from Code to Production URL in Seconds Icon
    Go from Code to Production URL in Seconds

    Cloud Run deploys apps in any language instantly. Scales to zero. Pay only when code runs.

    Skip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.
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  • 10
    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: 14 This Week
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  • 11
    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: 14 This Week
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  • 12
    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: 12 This Week
    Last Update:
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  • 13
    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: 11 This Week
    Last Update:
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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: 10 This Week
    Last Update:
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  • 15
    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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  • 16
    erd

    erd

    Translates a plain text description of a relational database schema

    erd is a Haskell-based command-line tool that transforms a plain-text description of a relational database schema into a graphical entity-relationship diagram using common ER conventions. This utility takes a plain text description of entities, their attributes and the relationships between entities and produces a visual diagram modeling the description. The visualization is produced by using Dot with GraphViz. There are limited options for specifying color and font information. Also, erd can output graphs in a variety of formats, including but not limited to: pdf, svg, eps, png, jpg, plain text and dot. In case one wishes to have a statically linked erd as a result, this is possible to have by executing build-static_by-nix.sh: which requires the nix package manager to be installed on the building machine. NixOS itself is not a requirement.
    Downloads: 9 This Week
    Last Update:
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  • 17
    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: 8 This Week
    Last Update:
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  • 18
    XLS

    XLS

    XLS: Accelerated HW Synthesis

    XLS is an open-source toolkit for building high-level hardware with a modern compiler stack that spans from a functional DSL to optimized IR and hardware generation. At the front end, DSLX lets you describe algorithms with strong typing and familiar control flow while remaining synthesis-friendly. The compiler lowers DSLX into a rich intermediate representation, applies aggressive optimization and scheduling passes, and can either JIT the design for software simulation or emit Verilog for FPGA/ASIC flows. A key idea is “software-style” iteration: fast, deterministic simulation via the JIT encourages test-driven development and property checking before committing to RTL. XLS also provides tooling for pipelining, state insertion, and formal equivalence checks between different stages, giving developers confidence as designs evolve. The result is a productive path from high-level specification to real hardware, without giving up control over latency, throughput, and area trade-offs.
    Downloads: 8 This Week
    Last Update:
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  • 19
    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: 70 This Week
    Last Update:
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  • 20
    HTML5 Boilerplate

    HTML5 Boilerplate

    The web’s most popular front-end template

    HTML5 Boilerplate is a popular and professional front-end template that lets you build fast, robust and adaptable web sites or applications. It’s built with the combined knowledge and effort of hundreds of developers over a span of years, creating a powerful tool in one small package. HTML5 Boilerplate comes loaded with great features, such as HTML5 support, optimized Google Analytics snippet, jQuery and Modernizr, and so much more. It supports the latest and most popular browsers and does not impose a specific development philosophy or framework, so you can code any way you want.
    Downloads: 7 This Week
    Last Update:
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  • 21
    Material design icons

    Material design icons

    The icon set from Google

    Material design icons is the icon set from Google, which follows the material design guidelines. These system icons are simple, modern and also delightful and beautifully crafted symbols that depict universal actions, items and concepts used commonly throughout a UI. All icons are available in a range of sizes, densities and themes, and have been optimized for beautiful display on all common platforms and display resolutions. The full set of icons can be viewed in the Material Icons Library, and are available in several formats and suitable for different types of projects. Developers can use them in their digital products for Android, iOS, and web; and designers in their mockups or prototypes.
    Downloads: 6 This Week
    Last Update:
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  • 22
    One Dark Pro

    One Dark Pro

    Atom's iconic One Dark theme for Visual Studio Code

    One Dark Pro is a popular Visual Studio Code theme inspired by the Atom One Dark theme, designed to provide a visually appealing and consistent coding environment. It focuses on readability and aesthetics, using a carefully selected color palette that reduces eye strain while maintaining strong contrast between code elements. The theme supports a wide range of programming languages, ensuring consistent syntax highlighting across different file types. It also integrates seamlessly with VS Code features, enhancing the overall developer experience. The design emphasizes clarity, making it easier to navigate and understand complex codebases. It is widely adopted due to its balance between style and functionality. Overall, OneDark-Pro serves as a high-quality customization option for developers seeking a polished coding interface.
    Downloads: 6 This Week
    Last Update:
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  • 23
    Chalk

    Chalk

    Terminal string styling done right

    Chalk 5 is ESM. If you want to use Chalk with TypeScript or a build tool, you will probably want to use Chalk 4 for now. Chalk comes with an easy to use composable API where you just chain and nest the styles you want. Chain styles and call the last one as a method with a string argument. Order doesn't matter, and later styles take precedent in case of a conflict. This simply means that chalk.red.yellow.green is equivalent to chalk.green. Color support is automatically detected, but you can override it by setting the level property. You should however only do this in your own code as it applies globally to all Chalk consumers. Detect whether the terminal supports color. Used internally and handled for you, but exposed for convenience. chalkStderr contains a separate instance configured with color support detected for stderr stream instead of stdout. Override rules from supportsColor apply to this too. supportsColorStderr is exposed for convenience.
    Downloads: 5 This Week
    Last Update:
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  • 24
    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: 5 This Week
    Last Update:
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  • 25
    Vim colorschemes

    Vim colorschemes

    One colorscheme pack to rule them all!

    This repository is a large collection of classic and modern Vim color schemes aggregated in one place. Instead of hunting down dozens of separate repos, you can install this bundle and instantly try many popular themes. It is useful for quickly auditioning palettes, testing readability, and finding a scheme that matches your terminal and font. The project organizes color files in a predictable structure so :colorscheme just works. Because it is a collection, it includes both minimalist palettes and high-contrast styles, covering a wide range of preferences. It serves as a convenient sampler for users building or refreshing their Vim setup.
    Downloads: 5 This Week
    Last Update:
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