Open Source JavaScript Software - Page 41
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JavaScript Software
Browse free open source JavaScript Software and projects below. Use the toggles on the left to filter open source JavaScript Software by OS, license, language, programming language, and project status.
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EventCatalog
Open source tool for documenting and exploring event-driven systems
EventCatalog is an open source documentation tool designed for event-driven architectures. It helps teams organize, document, and understand complex systems by mapping events, services, domains, and flows in one place. Instead of scattered knowledge, it creates a central, searchable catalog that improves visibility and collaboration. Documentation is generated and maintained automatically, making it easier to keep systems up to date as they evolve. With built-in discoverability features, developers and stakeholders can quickly explore how services interact and identify dependencies. EventCatalog supports extensibility through APIs and integrations, allowing teams to adapt it to their workflows. By bringing structure and governance to distributed systems, EventCatalog reduces confusion and helps teams make informed decisions faster. It is widely used by organizations to simplify event-driven systems and improve communication across teams. -
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EventEmitter3
Because there's also a number 2. And we're faster
EventEmitter3 is a high-performance event emitter for Node.js and the browser, providing a lightweight and efficient solution for managing events and event listeners in JavaScript applications. -
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Flightplan
Run sequences of shell commands against local and remote hosts
A task automation and deployment tool for Node.js, allowing developers to execute remote SSH commands and manage deployments efficiently. -
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Flow Typed
A central repository for Flow library definitions
High-quality library definitions for Flow. flow-typed is a repository of third-party library interface definitions for use with Flow. When you start a project with Flow, you likely want to use some third-party libraries that were not written with Flow. By default, Flow will just ignore these libraries leaving them untyped. As a result, Flow can't give errors if you accidentally misuse the library (nor will it be able to auto-complete the library). To address this, Flow supports library definitions which allow you to describe the interface of a module or library separate from the implementation of that module/library. The flow-typed repo is a collection of high-quality library definitions, tests to ensure that definitions remain high quality, and tools to make it as easy as possible to import them into your project. All you have to do when you add one or more new dependencies to your project is run flow-typed install. -
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Fomantic-UI
Fomantic-UI is the community fork of Semantic-UI
Fomantic is a development framework that helps create beautiful, responsive layouts using human-friendly HTML. Fomantic UI treats words and classes as exchangeable concepts. Classes use syntax from natural languages like noun/modifier relationships, word order, and plurality to link concepts intuitively. Get the same benefits as BEM or SMACSS, but without the tedium. Fomantic uses simple phrases called behaviors that trigger functionality. Any arbitrary decision in a component is included as a setting that developers can modify. Performance logging lets you track down bottlenecks without digging through stack traces. Fomantic comes equipped with an intuitive inheritance system and high-level theming variables that let you have complete design freedom. Develop your UI once, then deploy with the same code everywhere. The only dogma from this framework: everything arbitrary is mutable. -
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Framelink MCP for Figma
MCP server enabling AI coding tools to access Figma design data
Figma-Context-MCP is an open source server that connects Figma design data with AI-powered coding tools through the Model Context Protocol (MCP). It allows coding assistants to retrieve structured information from Figma files so they can better translate visual designs into working code. Instead of relying on screenshots or manual descriptions, Figma-Context-MCP accesses layout, styling, and component metadata directly from the Figma API and presents it in a simplified format optimized for AI models. This transformation reduces unnecessary metadata and focuses on the most relevant design attributes, helping AI coding agents produce more accurate UI implementations. Developers can integrate the server with compatible tools such as AI-assisted IDE environments that support MCP-based integrations. When a developer provides a Figma file, frame, or element reference, the AI client can request design data from the server and generate code based on that structure. -
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G6
A Graph Visualization Framework in JavaScript
G6 is graph visualization engine with simplicity and convenience. Based on the ability to customize, it provides a set of elegant graph visualization solutions and helps developers to build up applications for graph visualization, graph analysis, and graph editor. G6 is a complete graph visualization engine, which focuses on relational data. According to practical business scenarios, we found the top solutions. Well-designed simple, flexible, and extendable interfaces will satisfy your infinite originality. A social network is an important scenario in graph visualization. The relationships become complicated with the development of social networks. Graph visualization and analysis do well in these complex cases. -
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GSD Core
Meta-prompting, context engineering, spec-driven development system
GSD Core is the core framework behind Open GSD, a workflow system for AI-assisted software engineering. It is designed to keep agent-driven development organized by turning vague goals into structured research, plans, tasks, implementation phases, verification steps, and handoffs. The project focuses on cleaner context, verified work, and more honest project history when working with coding agents. It supports installation across several AI coding runtimes and offers profiles for different levels of workflow surface area. The system is especially useful for developers who use AI agents heavily and need more discipline around planning, execution, and review. It acts less like a single app and more like an execution layer for shipping software with agents. -
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Gantt-elastic - Javascript Gantt Chart
Gantt Chart [ javascript gantt chart, gantt component, vue gantt)
Gantt Chart, JavaScript Gantt chart, Gantt component, vue Gantt, vue Gantt chart, responsive Gantt, project manager, vue projects. -
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Generative AI for Beginners (Version 3)
21 Lessons, Get Started Building with Generative AI
Generative AI for Beginners is a 21-lesson course by Microsoft Cloud Advocates that teaches the fundamentals of building generative AI applications in a practical, project-oriented way. Lessons are split into “Learn” modules for core concepts and “Build” modules with hands-on code in Python and TypeScript, so you can jump in at any point that matches your goals. The course covers everything from model selection, prompt engineering, and chat/text/image app patterns to secure development practices and UX for AI. It also walks through modern application techniques such as function calling, RAG with vector databases, working with open source models, agents, fine-tuning, and using SLMs. Each lesson includes a short video, a written guide, runnable samples for Azure OpenAI, the GitHub Marketplace Model Catalog, and the OpenAI API, plus a “Keep Learning” section for deeper study. -
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Gitingest
Create prompt-friendly codebase digests from any Git repository URL
Gitingest is a developer utility that converts an entire Git repository into a structured, prompt-friendly text digest suitable for use with large language models. It analyzes a repository and produces a consolidated textual representation that includes the file structure and code content in an organized format. This makes it easier to provide meaningful code context when working with AI systems that require compact, readable inputs. Developers can generate these digests from either a local directory or a remote repository by supplying a repository path or URL. The generated output is optimized for prompt usage, helping AI models understand codebases more effectively without requiring manual file aggregation. In addition to producing the code digest, Gitingest also calculates statistics about the extracted content such as repository structure, total size of the extract, and token count. Gitingest can be used as a command line utility or integrated directly into Python applications. -
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Grommet
React-based framework that provides accessibility, modularity, etc.
Streamline the way you develop apps. Build responsive and accessible mobile-first projects for the web with an easy-to-use component library. part design system, part framework, and all awesome. grommet is a React-based framework that provides accessibility, modularity, responsiveness, and themes in a tidy package. Tailor composite components with grommet. embrace atomic design methods and build a library that fits your needs. Keyboard navigation, screen reader tags, and more. grommet provides support for W3c’s WCAG 2.1 spec out of the box. Tailor the component library to align with your Color, Type, and Layout needs. you can even control component interaction. Support all the devices! Use Flexbox and CSS Grid to provide layouts for all those new phones and widescreen displays. Already working on a project, starting fresh, or just want to poke around and see how all this junk works? -
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Hexo
A fast, simple & powerful blog framework, powered by Node.js
Hexo is a blazing fast and yet simple blog framework powered by Node.js. It supports all features of GitHub Flavored Markdown, as well as most Octopress plugins. Hexo is quite powerful, able to build hundreds of files in a matter of seconds, and equipped with amazing APIs for unlimited extensibility. It offers hundreds of themes and plugins for you to choose from and achieve exactly what you want, and takes just one command to deploy to GitHub Pages, Heroku or other platforms. -
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Home Assistant Config (hass-config)
A different take on designing a Lovelace UI (Dashboard)
hass-config is a user’s home automation configuration repository (for Home Assistant) that captures their YAML files, scripts, automations, dashboards, and integrations in a version-controlled layout. By organizing all Home Assistant components—sensors, automations, scripts, themes, and Lovelace UI definitions—into a structured hierarchy, the repo helps maintain consistency, shareability, and backup of the smart home setup. Because Home Assistant involves complex interdependencies between devices and automations, having a central config repo ensures changes are traceable and easily reverted. The repository often includes templates, secrets configuration, and skip-files to avoid committing sensitive credentials. For users running multiple installations or migrating devices, hass-config serves as the canonical definition of the automation state. It’s especially helpful for community users who share automations, troubleshoot setups, or onboard new devices. -
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Hybrid Browser
A p2p browser, browse the p2p networks along with the regular net
Browse the p2p networks, and create and view p2p websites. It means you will be able to interact with p2p networks and view the p2p data on the browser. You will be able to create and upload p2p websites. This makes it possible to create fully peer-to-peer websites, no middlemen and no servers. -
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I Still Don't Care About Cookies
Debloated fork of the extension "I don't care about cookies"
Debloated fork of the extension "I don't care about cookies". Get rid of cookie warnings from almost all websites! This extension has been acquired by Avast and simply I don't trust Avast with my data. Also having it on Github allows us to improve the code & add support for websites faster. The EU regulations require that any website using tracking cookies must get user's permission before installing them. These warnings appear on most websites until the visitor agrees with the website's terms and conditions. Imagine how irritating that becomes when you surf anonymously or if you delete cookies automatically every time you close the browser. This add-on will remove these cookie warnings from almost all websites! You can report any website which still warns you about cookies: just click 'Report a cookie warning' from the extension menu (the brown cookie image next to your address bar). -
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Ionic
Build amazing Native and Progressive Web Apps with web technologies
Ionic is an open source mobile app development framework based on Web components that makes it easy to build fast, top quality native and progressive web apps. It uses web technologies that significantly improve design, performance and usability. -
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JS-Data
Give your data the treatment it deserves
JSData is a framework-agnostic, datastore-agnostic ORM for Node.js and the Browser. Adapters allow JSData to connect to various data sources such as Firebase, MySql, RethinkDB, MongoDB, localStorage, Redis, a REST API, etc. With JSData you can re-use your data modeling code between environments, keep your data layer intact when transitioning between app frameworks, and work with a unified data API on the server and the client. JSData employs conventions for rapid development, but allows for endless customization in order to meet your particular needs. -
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JSON Crack
Innovative and open-source visualization application
JSON Crack is a free, open-source data visualization app capable of visualizing data formats such as JSON, YAML, XML, CSV and more, into interactive graphs. With its intuitive and user-friendly interface, JSON Crack makes it easy to explore, analyze, and understand even the most complex data structures. Whether you're a developer working on a large-scale project or a data enthusiast looking to uncover hidden insights, JSON Crack has the tools and features you need to unlock the full potential of your data. -
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JSONPath Plus
A fork of JSONPath
Analyse, transform, and selectively extract data from JSON documents (and JavaScript objects). JSON path-plus expands on the original specification to add some additional operators and makes explicit some behaviors the original did not spell out. Try the browser demo or Runkit (Node). -
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Jekyll LibDoc
A Jekyll documentation theme with built-in search and playground
A Jekyll documentation theme with built-in search and playground. LibDoc is a Jekyll theme that was crafted to easily and quickly get properly designed documentation, especially for CSS and Javascript libraries. It comes with a built-in playground and a local search engine. -
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Jest Puppeteer
Run your tests using Jest & Puppeteer
Most continuous integration platforms limit the number of threads one can use. If you have more than one test suite running puppeteer chances are that your test will timeout. This is because jest will try to run puppeteer in parallel and the CI platform won't be able to handle all the parallel jobs in time. A fix to this is to run your test serially when in a CI environment. Users have discovered that running test serially in such environments can render up to 50% of performance gains. Writing integration test can be done using Puppeteer API but it can be complicated and hard because API is not designed for testing. Debugging tests can be hard sometimes and it is very useful to be able to pause tests in order to inspect the browser. Jest Puppeteer exposes a method jestPuppeteer.debug() that suspends test execution and gives you the opportunity to see what's going on in the browser. -
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Jitsi Meet
Secure, simple and scalable video conferences application
Go ahead, video chat with the whole team. In fact, invite everyone you know. Jitsi Meet is a fully encrypted, 100% open source video conferencing solution that you can use all day, every day, for free — with no account needed. Head over to meet.jit.si and see the service in action before you decide whether you’d like to run your own instance. For those interested, check out the meet.jit.si terms of service and privacy policy. Yep, it’s free — and it’s technologically advanced, too. In fact, Jitsi Meet sounds better, thanks to HD audio with Opus; is anonymous, no need for an account, ever! It also keeps conversations private with encryption by default (and advanced security settings) and is developer-friendly, modify and customize it to your heart’s content. It’s 100% open source. Trade messages and emojis while you video conference, with integrated chat. -
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Join Monster
A GraphQL to SQL query execution layer for query planning
A GraphQL to SQL query execution layer for query planning and batch data fetching. Efficient query planning and data fetching for SQL. Use JOINs and/or batched requests to retrieve all your data. It takes a GraphQL query and your schema and automatically generates the SQL. Send that SQL to your database and get back all the data needed to resolve with only one or a few round-trips to the database. Since it works with the reference implementation, the API is all very familiar. Join Monster is a tool built on top to add batch data fetching. You add some special properties along-side the schema definition that Join Monster knows to look for. The use of graphql-js does not change. You still define your types the same way. You can write resolve functions to manipulate the data from Join Monster, or incorporate data from elsewhere without breaking out of your "join-monsterized" schema. -
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Just JavaScript
the only javascript runtime to hit no.1 on techempower
The only javascript runtime to hit no.1 on techempower.
