Open Source BSD Design Software
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Design Software for BSD
Browse free open source Design software and projects for BSD 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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SketchyBar
A highly customizable macOS status bar replacement
SketchyBar is a highly customizable macOS status bar replacement designed around shell scripting and dynamic configuration. Every item can be created, removed, repositioned, or restyled while the bar is running. A powerful event system lets scripts react to workspace changes, application activity, system information, and custom events. The animation engine supports smooth transitions between visual states. Interactive items can respond to mouse actions and display popup menus on demand. SketchyBar can also show macOS menu bar applications, render arbitrary graphs, and integrate naturally with tiling window managers such as yabai. -
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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. -
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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. -
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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. -
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New Moon Theme
The optimized dark theme for web development
New Moon is a dark syntax and interface theme designed to provide a consistent coding environment across editors, terminals, and development tools. Its palette emphasizes clear visual distinctions between code, markup, variables, strings, keywords, classes, and operators. The theme is particularly tuned for HTML, CSS, Sass, JavaScript, React, Vue, PHP, and WordPress development. Implementations are available for tools including Visual Studio Code, Chrome DevTools, Sublime Text, iTerm2, Terminal, Hyper, Blink Shell, Vim, and Alfred. A shared color palette keeps the appearance recognizable across supported applications. The project is optimized for comfortable use during long coding sessions while maintaining strong syntax separation. Additional ports can be contributed using the included theme template structure. -
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Haze
Background blurring for Compose Multiplatform
Haze is a modern UI library designed for Jetpack Compose and Compose Multiplatform that enables advanced background blurring effects commonly associated with glassmorphism design. It provides a high-level abstraction for creating dynamic blur effects that apply to content behind UI elements rather than just the elements themselves, solving a limitation of standard blur modifiers. The library is built on top of Compose’s graphics layer APIs, allowing it to operate consistently across multiple platforms while maintaining performance. It introduces a flexible styling system where developers can define blur intensity, masking, and opacity dynamically using composable scopes. One of its standout features is support for progressive blurring, where blur intensity changes across a gradient, creating more visually refined effects. It also includes prebuilt “material” styles inspired by platforms like iOS and Windows, enabling developers to replicate native design aesthetics. -
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Actions and Tags for Zotero
Customize your Zotero workflow
Actions & Tags is a Zotero plugin for automating library organization through event-driven actions and custom scripts. It can add or remove tags when items are created, opened, closed, modified, or matched by other triggers. Users can also launch actions manually through configurable keyboard shortcuts. Built-in and community examples cover tag replacement, item-link copying, automatic note creation, and metadata translation. Scriptable operations allow advanced users to manipulate selected items, notes, collections, and application behavior. Actions can be combined into repeatable workflows that reduce manual cataloging and cleanup. The plugin is installed as an XPI extension and is intended to make Zotero adapt to individual research habits. -
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GitHub Dark
Dark GitHub style
GitHub-Dark is a userstyle that transforms GitHub’s interface into a coherent dark theme, covering repositories, issues, pull requests, gists, and profile pages. Distributed as a CSS stylesheet intended for the Stylus browser extension, it applies a comprehensive palette, rebalances contrast, and refines syntax colors for code views to ensure readability in low-light settings. The project goes beyond simple inversion by thoughtfully adjusting backgrounds, borders, badges, and diff highlights so the UI feels native rather than “flipped.” It includes targeted fixes for edge cases across GitHub’s many subpages, aiming for consistency while preserving the information hierarchy of the original design. Users can apply the theme selectively, override variables, or combine it with other userstyles to fit personal preference. Even with GitHub’s own theme options, GitHub-Dark remains a carefully tuned alternative for people who want a specific aesthetic or more granular control. -
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MahApps.Metro IconPacks
Awesome icon packs for WPF and UWP in one library
Awesome icon packs for WPF and UWP in one library. -
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This project provides a generic CDS (or ARINC 661 Server), coded in the Java language in order to facilitate the understanding of the ARINC 661 standard, prototype ARINC 661 concepts and architectures, etc… This project is managed by Dassault Aviation.
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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
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Temporal Inference Engine
A real time inference engine for temporal logical specifications
A real time inference engine for temporal logical specifications, which is able to acquire, process and generate any binary or real signal through POSIX IPC, files or UNIX sockets. Specifications of signals and dynamic systems are represented as special graphs and executed in real time, with a predictable sampling time of few milliseconds. Real time signal processing, dynamic system control, state machine modeling and logical property verification are some fields of application of this software. The accepted language provides timed logic and mathematical operators, conditional operators, interval operators, bounded quantifiers and parametrization of signals. -
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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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Yunus is a simple "visual" script language. Yunus is obsolete (left in 2004). However this site exhibits many projects; you will find my other "PHP, VS.NET, Flash, Delphi" projects. eOgr is my second complete application after Yunus.
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Bootswatch
Themes for Bootstrap
Bootswatch is a collection of open-source themes for Bootstrap. It helps developers change the look of a Bootstrap project without rebuilding the entire design system from scratch. Each theme works as a drop-in replacement for Bootstrap’s default stylesheet, which makes adoption simple for existing sites. The project supports several installation paths, including precompiled CSS, CDN usage, npm, Sass imports, and Ruby gem integration. Developers can customize themes by editing Sass variables and theme-specific structural styles. Overall, Bootswatch is useful for teams that want polished Bootstrap styling, faster prototyping, and consistent visual options across web projects. -
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Ethereal Style
Ethereal Style for Zotero
Zotero Style, also known as Ethereal Style, is an open-source Zotero plugin that enhances the reference library interface with visual reading indicators and customizable columns. It helps researchers monitor their progress through academic papers and organize collections more effectively. Reading activity can be displayed as color gradients behind document titles. A dedicated progress column visualizes annotation activity across PDF pages. The plugin distinguishes read and unread references through title formatting. It also provides a separate column for tags and additional library organization controls. Its interface enhancements allow researchers to identify unfinished readings and manage large literature collections without opening every document. -
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System Design
Learn how to design systems and prepare for system design interviews
This project is an open, course-style repository designed to help you learn system design from fundamentals through advanced, interview-ready thinking. It organizes core networking and distributed-systems concepts into a structured path, so you can build intuition before jumping into “design X” exercises. It covers the building blocks that show up in real architectures, such as DNS, load balancing, caching, CDNs, proxies, scalability and availability tradeoffs, and storage patterns, then connects those pieces to larger system goals. The materials are geared toward clarity and repeatability, making it useful both for self-study and for quick review before interviews. It emphasizes the why behind design decisions, not just a list of components, so you can explain tradeoffs under constraints like cost, latency, reliability, and growth. Overall, it functions like a practical playbook for learning how large systems are composed, where they fail, and how to reason about improvements. -
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initializr-template
Initializr's generated page
Initializr Template is the generated starter page that served as a base layout for projects created with Initializr. It provides a structured HTML5 document with header, navigation, article, sidebar, sections, and footer areas ready for customization. The template includes responsive viewport configuration and a separate stylesheet for page presentation. Modernizr is loaded early to support feature detection and compatibility techniques used by contemporary browsers of its era. Conditional HTML classes provide special handling for older versions of Internet Explorer. Placeholder content demonstrates the intended semantic hierarchy before developers replace it with their own material. The project is intentionally lightweight and consists primarily of HTML, CSS, and supporting JavaScript assets. -
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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.
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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.
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Structorizer is a little tool which you can use to create Nassi-Schneiderman Diagrams (NSD). Stuctorizer is written in Java and free for any use. The code has been moved to Github: https://github.com/fesch/Structorizer.Desktop
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ClassBuilder is freeware CASE tool targeted at the C++ developer, running on Win2K/XP/Vista/7. It lets you create, manipulate and navigate classes, class relations, class members and class methods at a high level of abstraction through a graphical user interface
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The Open Game Studio is a project that targets game developers (mostly hobbyists). The goal of this project is to create a development environment that focuses on developing the game content. An engine that can run the created games is in work too.
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This software should help to easy migrate Delphi forms (Delphi & CBuilder) into Qt4 forms. The converter itself is written in Qt4.x. Special Thanks to Robert.
