Showing 540 open source projects for "building"

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  • 1
    Tower Building Game

    Tower Building Game

    HTML5 Canvas Tower Building Game

    Tower Building Game is a small game project — likely implementing a classic “tower defense” or “tower-based” game — designed to showcase game-development fundamentals such as rendering, game logic, user interaction, and possibly simple physics or animations. As an open-source repository, tower_game aims not only to deliver a playable game, but also to serve as a learning resource or template: developers can inspect its code, understand how game loops, input handling, asset management, and state updates are organized. ...
    Downloads: 15 This Week
    Last Update:
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  • 2
    Node.js

    Node.js

    Cross-platform JavaScript runtime environment

    Node.js is a free, open-source, cross-platform JavaScript runtime environment that allows developers to run JavaScript outside of the browser. It is built on Chrome’s V8 engine and is designed for building fast, scalable network applications. Node.js enables developers to create servers, APIs, command-line tools, and full-stack web applications using a single programming language. Its non-blocking, event-driven architecture makes it highly efficient for handling concurrent requests. The ecosystem is supported by npm, one of the largest package managers, providing access to thousands of libraries and tools. ...
    Downloads: 74 This Week
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  • 3
    IsoCity

    IsoCity

    A isometric city builder in JavaScript

    Isocity is an interactive web-based project that allows users to create their own isometric cities using modular blocks. It's designed as a fun and creative way to build pixel art cities.
    Downloads: 5 This Week
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  • 4
    marko

    marko

    A declarative, HTML-based language that makes building web apps fun

    A declarative, HTML-based language that makes building web apps fun. If you know HTML, CSS, and Javascript, you know Marko. Streaming, partial hydration, an optimizing compiler, & a small runtime. Start with simple HTML templates and add powerful components as needed. Marko is powering high-traffic websites like ebay.com. Marko is HTML re-imagined as a language for building dynamic and reactive user interfaces.
    Downloads: 3 This Week
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  • 5
    ToolJet

    ToolJet

    Extensible low-code framework for building business applications

    Extensible low-code framework for building business applications. Connect to databases, cloud storages, GraphQL, API endpoints, Airtable, etc and build apps using drag and drop application builder. Built using JavaScript/TypeScript. Everything you need to build internal tools. Open-source low-code application development platform for building and deploying business applications.
    Downloads: 10 This Week
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  • 6
    AI Agents From Scratch

    AI Agents From Scratch

    Demystify AI agents by building them yourself. Local LLMs

    ...It focuses on explaining the architecture of agent systems rather than simply providing finished code, making it useful for developers who want to understand how AI agents actually work internally. By building agents incrementally, the project helps learners grasp concepts such as decision loops, task decomposition, and environment interaction.
    Downloads: 5 This Week
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  • 7
    Mongoose

    Mongoose

    Elegant mongodb object modeling for node.js

    ...It's designed to work in an asynchronous environment, providing a simple, straightforward approach to object modeling that skips out on the tedious tasks of writing MongoDB validation, casting and business logic boilerplate. Mongoose offers an uncomplicated schema-based solution, and comes with nifty features like type casting, validation, query building, and business logic hooks right out of the box. Mongoose also has a rich set of plugins made by the community and you can write your own to make Mongoose an even better solution for your needs.
    Downloads: 7 This Week
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  • 8
    Open Vibe

    Open Vibe

    Open Vibe turns Claude Code into a SaaS-building assistant

    Open Vibe is an open-source course and agent workflow that turns Claude Code, Codex, Copilot, Open Code, or another terminal-capable AI coding agent into a SaaS-building assistant. It is built around Open SaaS, a free Wasp-powered SaaS boilerplate, so learners can create a real app while understanding the architecture behind production-ready SaaS systems. The workflow starts with setup instructions that install Node.js, install the Wasp CLI, and verify the local environment. After creating a new Wasp app, the user opens an AI coding agent inside the project and lets it fetch course module instructions. ...
    Downloads: 4 This Week
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  • 9
    CyberChef

    CyberChef

    A web app for encryption, encoding, compression and data analysis

    CyberChef, developed by GCHQ, is a versatile web application dubbed the "Cyber Swiss Army Knife." It enables users to perform a wide array of operations on data, including encryption, encoding, compression, and analysis, all within a browser interface.​
    Downloads: 67 This Week
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  • 10
    Open Generative AI

    Open Generative AI

    Uncensored, open-source alternative to Higgsfield AI

    ...It includes references to tools for natural language processing, computer vision, and multimodal systems. The project is designed as a knowledge hub, helping users discover technologies and best practices for building generative AI applications. It is particularly useful for beginners who need a structured overview as well as for experienced developers looking for new tools. The repository is continuously updated to reflect the latest developments in the field. Overall, it serves as a comprehensive guide to the generative AI ecosystem.
    Downloads: 112 This Week
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  • 11
    Web Experience Toolkit

    Web Experience Toolkit

    Open source code library for building innovative websites

    ...Touchscreen support. Optimized for performance. Building support for device-based mobile applications.
    Downloads: 0 This Week
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  • 12
    Next.js

    Next.js

    The React Framework

    Next.js is the React framework for lightweight apps, static websites, pre-rendered apps and more. It solves the most common problems associated with building a complete web application with React, such as those involving code bundling and transforming, production automizations, page rendering and having to write server-side code. Next.js offers a best in class “Developer Experience” through such capabilities as pre-rendering, single command static exporting, automatic code-splitting, hot code reloading and many other great features. ...
    Downloads: 92 This Week
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  • 13
    BitTorrent DHT

    BitTorrent DHT

    Simple, robust, BitTorrent DHT implementation

    bittorrent-dht is a Node.js implementation of the BitTorrent Mainline Distributed Hash Table (DHT) protocol, enabling decentralized peer discovery for BitTorrent clients. This module allows users to announce and lookup peers for specific torrents without the need for trackers. It’s lightweight, fast, and well-suited for building custom torrent clients, browser-based peers, or decentralized apps. This project powers part of WebTorrent and is maintained with performance and minimalism in mind.
    Downloads: 3 This Week
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  • 14
    Browserbase Skills

    Browserbase Skills

    Claude Agent SDK with a web browsing tool

    ...It is particularly useful for building AI agents that perform tasks like scraping, testing, or workflow automation. Overall, it turns browser interaction into a modular and programmable skill system.
    Downloads: 5 This Week
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  • 15
    Yjs

    Yjs

    Shared data types for building collaborative software

    Yjs is a high-performance, open-source CRDT (Conflict-free Replicated Data Type) implementation for building collaborative, real-time applications. It enables multiple users to edit shared data structures—such as text documents, arrays, maps, and XML trees—synchronously and offline. Yjs is network-agnostic and works with WebRTC, WebSocket, or any other transport layer, making it ideal for collaborative editors, whiteboards, and design tools.
    Downloads: 4 This Week
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  • 16
    AG2

    AG2

    Framework for building and orchestrating multi-agent AI systems

    ...AG2 focuses on making multi-agent systems more accessible by simplifying how agents are configured, connected, and executed. It includes mechanisms for agent-to-agent interaction, task delegation, and iterative reasoning, which are essential for building advanced AI-driven applications. AG2 is intended for developers experimenting with autonomous systems, research prototypes, or production-grade agent pipelines. AG2 emphasizes flexibility, allowing users to integrate different models and customize behaviors depending on their use case. Overall, it serves as a foundation for building scalable and modular AI agent ecosystems.
    Downloads: 2 This Week
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  • 17
    Knex

    Knex

    A query builder for PostgreSQL, MySQL, CockroachDB, SQL Server, etc.

    Knex.js is a flexible and portable SQL query builder for JavaScript. It supports multiple database systems, including PostgreSQL, MySQL, SQLite3, and more. Knex.js offers a powerful and intuitive API for building and executing SQL queries, making it a popular choice for Node.js applications requiring database interactions.
    Downloads: 0 This Week
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  • 18
    A-Frame

    A-Frame

    A web framework for building virtual reality experiences

    A-Frame is an open source web framework for building virtual reality experiences. With A-Frame you can create WebVR with HTML and entity-component works on Vive, Rift, Daydream and more. A-Frame simplifies virtual reality by handling the required 3D and WebVR boilerplate to get you running on platforms like mobile, desktop, Vive, and Rift. Because it can be used from HTML, just about everyone can use it.
    Downloads: 2 This Week
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  • 19
    Astron Agent

    Astron Agent

    Enterprise platform for building and orchestrating AI agent workflows

    Astron Agent is an enterprise-grade platform designed for building and managing intelligent AI agent workflows in production environments. It provides a development environment that combines workflow orchestration, model management, and integration with various AI tools and services. Astron Agent enables organizations to design complex agent-driven processes that coordinate models, automation tools, and enterprise systems.
    Downloads: 0 This Week
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  • 20
    RAG from Scratch

    RAG from Scratch

    Demystify RAG by building it from scratch

    RAG From Scratch is an educational open-source project designed to teach developers how retrieval-augmented generation systems work by building them step by step. Instead of relying on complex frameworks or cloud services, the repository demonstrates the entire RAG pipeline using transparent and minimal implementations. The project walks through key concepts such as generating embeddings, building vector databases, retrieving relevant documents, and integrating the retrieved context into language model prompts. ...
    Downloads: 0 This Week
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  • 21
    Halfmoon

    Halfmoon

    Front-end framework with a built-in dark mode

    Front-end framework with a built-in dark mode and full customizability using CSS variables; great for building dashboards and tools. Halfmoon is a responsive front-end framework that is great for building dashboards and tools. Built-in dark mode, full customizability using CSS variables (around 1,500 variables), optional JavaScript library (no jQuery), Bootstrap-like classes, and cross-browser compatibility (including IE11). Halfmoon comes with a built-in, toggleable dark mode, which is one of its most important and defining features. ...
    Downloads: 0 This Week
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  • 22
    Kendo UI Core

    Kendo UI Core

    An HTML5, jQuery-based widget library for building modern web apps

    Kendo UI is everything you need to build sites and apps with HTML5 & JavaScript. Kendo UI Core is the free and open-source version of Kendo UI that provides access to the web's best UI widgets and key framework features, essential for developing great experiences for the web and mobile. Kendo UI Core is a free and open-source subset of Kendo UI. The following table details the widgets and features available in Kendo UI Core, as well as the additional features available via a commercial Kendo...
    Downloads: 1 This Week
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  • 23
    GitHub Actions for DigitalOcean

    GitHub Actions for DigitalOcean

    GitHub Actions for DigitalOcean - doctl

    GitHub Actions for DigitalOcean - doctl. Powerful and production-ready, our cloud platform has the solutions that devs like you need to succeed, whether you're building world-changing AI apps, running a side project, or building a business. GPU solutions for everyone—novice to expert. Run training and inference, process large data sets and complex neural networks, and deploy high-performance computing clusters.
    Downloads: 0 This Week
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  • 24
    Tailwind CSS

    Tailwind CSS

    A utility-first CSS framework for rapid UI development

    ...Even with the same color palette and sizing scale, it's easy to build the same component with a completely different look in the next project. Tailwind automatically removes all unused CSS when building for production, which means your final CSS bundle is the smallest it could possibly be. In fact, most Tailwind projects ship less than 10kB of CSS to the client.
    Downloads: 72 This Week
    Last Update:
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  • 25
    MindZJ

    MindZJ

    An open-source, offline note-taking app with native AI & CLI

    ...Overall, mindzj serves as a flexible environment for building and navigating structured knowledge systems.
    Downloads: 2 This Week
    Last Update:
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