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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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. -
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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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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. -
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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. -
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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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Academic CV Theme
Easily create a beautiful academic résumé or educational website
theme-academic-cv is a Hugo static site theme specialized for building academic curriculum vitae (CV) websites, personal academic homepages, and scholarly portfolios. The theme is tailored to present publication lists, education, projects, awards, and contact information in a clean, professional layout suitable for faculty, researchers, and scientists. It includes shortcodes and content archetypes for common academic components (e.g. publications, talks, teaching, service), as well as styling, typography, and responsive layouts to make the CV visually appealing and readable across devices. The theme supports light/dark modes, custom color accents, and configuration options so users can modify the look without extensive CSS coding. It also often includes integration for BibTeX or publication metadata (e.g. rendering publication lists from bibliographic files) and support for linking PDFs, datasets, or supplemental materials. -
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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. -
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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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Frontend Slides
Create beautiful slides on the web using Claude's frontend skills
Frontend Slides is a lightweight tool that enables users to create visually appealing, animation-rich web presentations without requiring knowledge of CSS or JavaScript by leveraging a guided, interactive workflow. It operates on a “show, don’t tell” philosophy, generating visual previews of styles so users can select their preferred design rather than describing it abstractly. The system produces fully self-contained HTML presentations with inline CSS and JavaScript, eliminating the need for external dependencies, build tools, or frameworks. It also supports converting existing PowerPoint files into web-based presentations while preserving content such as images, text, and structure. The tool includes curated design presets that avoid generic AI-generated aesthetics, ensuring presentations feel distinctive and intentional. Its architecture uses progressive disclosure, loading only necessary components at each step to keep the workflow efficient and intuitive. -
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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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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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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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Advanced Copy
A patch for GNU Core Utilities cp, mv to add progress bars
advcpmv is a command-line utility designed to enhance the traditional cp, mv, and rm commands with advanced safety and user interaction, making file operations less error-prone and more informative for users working in terminal environments. Instead of blindly copying, moving, or removing files, advcpmv adds features like progress displays, confirmation prompts, intelligent conflict resolution, and smart skipping of identical files, giving users greater transparency and control over batch operations. The interface maintains the familiar syntax of the classic Unix utilities while augmenting it with options that help prevent accidental data loss—such as asking before overwriting or deleting, comparing file hashes, and showing predicted outcomes. It’s particularly helpful in scripting or large-scale file management tasks because it combines safety with speed, balancing automation with intentional checks. -
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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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ink-kit
Onchain-focused SDK with ready-to-use templates and themes
ink-kit is a developer toolkit for building applications on the INK blockchain ecosystem, bundling the pieces you typically need to go from a blank repo to a working dapp. It provides contract templates, deployment scripts, and client SDKs so you can iterate on on-chain logic and a frontend without stitching together disparate tools. The kit standardizes project layout and environment configuration, making local development, testing, and staging deploys predictable. Utilities for wallet connection, signing, and basic indexing help you focus on business logic rather than bootstrapping. Example apps and guides demonstrate common patterns—minting, access control, payments, and simple off-chain integrations—so teams can adapt and extend quickly. The overarching goal is to reduce time-to-first-transaction and give projects a maintainable base that scales as features grow. -
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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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EasyStruts provide advanced support for developing Struts web applications with Eclipse . keywords: MVC, Struts, Eclipse, Java
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kodeWeave
HTML/CSS/JS and Markdown Playground For Web Designers and Developers
kodeWeave is a realtime coding playground for HTML, CSS and Javascript. Similar to JSFiddle and JSBin, but kodeWeave was made to work offline but also as a prototyping application to build applications for desktop operating systems while on mobile devices. (PhoneGap Build is recommended for mobile devices) kodeWeave similar to jsfiddle, jsbin, dabblet, liveweave, codepen, cssdeck, cssdesk, tinkerbin, d3 playground, plunker and pastebin, but allows you to export your web app as a desktop and/or chrome application. -
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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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PDFReporter Studio
Eclipse-based report and document development tool for PDFReporter
PDFReporter Studio is an open source, eclipse-based report designer based on Jasper Studio using the PDFReporter library. Create very sophisticated layouts containing images, subreports, crosstabs and much more for mobile usage. Access your data through JDBC and XML, custom sources can be added. Then publish your reports as PDF. -
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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.
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jSQL
Fiter the java collection using SQL syntax
jSql provides feature to filter the java collection using SQL similar syntax. Currently <,>,>=,<=,= ,and,or operators are supported, soon in,like,between and order by will be supported.
