Open Source JavaScript Software - Page 24
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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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One Monitoring Tool for IT, OT and Cloud | Free TrialModern infrastructure spans data centers, cloud platforms and factory floors, and every blind spot between them is a risk. PRTG supports SNMP, WMI, SSH and other standard protocols to monitor IT, OT and hybrid environments through one customizable dashboard. Build the views your team needs, from network health to application performance, without switching tools. Try PRTG free for 30 days now.
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Ship Agents FasterGemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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NOFX
Open source AI trading OS for autonomous multi-model trading systems
NOFX is an open source AI-powered trading operating system designed to automate financial trading workflows using autonomous AI agents. It acts as an infrastructure layer that transforms market data into AI-driven trade decisions and execution. Instead of requiring users to manually configure machine learning models, data sources, and API integrations, the system allows AI components to perceive market conditions, select models, and perform trading actions automatically. It supports running multiple AI models simultaneously and allows them to compete or collaborate when making trading decisions. NOFX integrates trading infrastructure such as exchange connectivity, strategy management, and performance monitoring into a single environment. It also includes components for strategy development, backtesting, and real-time monitoring so traders and researchers can evaluate algorithmic trading approaches. -
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NativeScript Command-Line Interface
Command-line interface for building NativeScript apps
The NativeScript CLI lets you create, build, and deploy NativeScript-based apps on iOS and Android devices. NativeScript is a cross-platform JavaScript framework that lets you develop native iOS and Android apps from a single code base. The framework provides JavaScript access to the native APIs, user interface, and rendering engines of iOS and Android. By using JavaScript or TypeScript, you can create one project that builds into an iOS or Android app with completely native user experience. The NativeScript CLI is the command-line interface for interacting with NativeScript. It incorporates several important services. -
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NodObjC
The Node.js ⇆ Objective-C bridge
NodObjC is a bidirectional bridge between Node.js and the Objective-C runtime. It lets JavaScript programs load Apple frameworks and call Objective-C classes, methods, constants, structures, and related C functions. BridgeSupport metadata is used to generate framework APIs dynamically, while the Node FFI layer performs runtime calls. Objective-C message passing is represented with JavaScript function-call syntax that preserves multipart selector names. Developers can build Cocoa or iOS interface prototypes while keeping application logic in JavaScript. Because code runs through V8 instead of being compiled into a native executable, changes can be tested without a full rebuild. The project is especially suited to rapid prototyping, scripting Apple APIs, and applications where development flexibility matters more than maximum native performance. -
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OpenZeppelin Contracts
OpenZeppelin Contracts is a library for secure smart contracts
A library for secure smart contract development. Build on a solid foundation of community-vetted code. OpenZeppelin Contracts uses semantic versioning to communicate backward compatibility of its API and storage layout. To keep your system secure, you should always use the installed code as-is, and neither copy-paste it from online sources nor modify it yourself. The library is designed so that only the contracts and functions you use are deployed, so you don't need to worry about it needlessly increasing gas costs. Reduce the risk of vulnerabilities in your applications by using standard, tested, community-reviewed code. -
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Pattern Lab Node
The Node version of Pattern Lab
This monorepo contains the core of Pattern Lab / Node and all related engines, UI kits, plugins, and utilities. Pattern Lab helps you and your team build thoughtful, pattern-driven user interfaces using atomic design principles. -
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PhotoSwipe
JavaScript framework independent image gallery
PhotoSwipe is the first open-source gallery to support JavaScript-based image zooming. Even if a browser’s native zooming has been disabled, image zooming will still work. The gallery’s background will gradually fade out as the user zooms out. When the gesture is complete, the gallery will close. Gesture is added because close button in top right corner might be hard to reach on tall mobile devices while holding in one hand. Images can be changed even when current slide is zoomed. Swiping is not blocked during the transition. PhotoSwipe manipulates the browser’s history so that the user can link to each gallery item and close the gallery via the “back” button. The initial URL is restored when the gallery is closed. PhotoSwipe adds a history record when the gallery is opened, which allows the user to close it via the browser’s “back” button. This feature comes as a module. You can exclude it from the build entirely, or fork it to fit the requirements of your product’s URL structure. -
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Pico.css
Minimal CSS Framework for semantic HTML
Minimal CSS Framework for semantic HTML. Elegant styles for all native HTML elements without .classes and dark mode automatically enabled. Pico uses simple native HTML tags as much as possible. Less than 10 .classes are used in Pico. No dependencies, package manager, external files, or JavaScript. Elegant and consistent adaptive spacings and typography on all devices. Shipped with two beautiful color themes, automatically enabled according to the user preference. We use simple native HTML tags as much as possible. Less than 10 .classes are used in Pico. No dependencies, package manager, external files, or JavaScript. Elegant and consistent adaptive spacings and typography on all devices. Shipped with two beautiful color themes, automatically enabled according to the user preference. A classic company or blog layout with a sidebar. A simple layout for Google Amp, with inlined CSS. -
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Playwright CLI
CLI for common Playwright actions
Playwright CLI is the official command-line interface for Playwright, a powerful cross-browser automation and end-to-end testing framework that lets developers write and run tests reliably across Chromium, WebKit, and Firefox. The CLI provides an easy entry point for creating new test projects, running test suites, generating test traces, and debugging issues directly from the terminal. Developers can scaffold test files, record browser interactions as code, and run tests in headless or headed modes without needing a complex setup, dramatically reducing the barrier to writing robust UI tests. Playwright-CLI includes utilities for running tests in parallel across multiple devices, capturing screenshots and videos on failures, and outputting detailed reports that help diagnose flaky behavior or regressions. It also integrates with CI/CD pipelines, making it simple to automate testing as part of build and deployment workflows. -
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Postbird
Open source PostgreSQL GUI client for macOS, Linux and Windows
Postbird is a cross-platform PostgreSQL GUI client, written in JavaScript, runs with Electron. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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Prism
Lightweight, robust, elegant syntax highlighting
Prism is a lightweight, extensible syntax highlighter, built with modern web standards in mind. It’s used in millions of websites, including some of those you visit daily. -
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RESTful API Node Server Boilerplate
A boilerplate for building production-ready RESTful APIs using Node.js
A boilerplate/starter project for quickly building RESTful APIs using Node.js, Express, and Mongoose. By running a single command, you will get a production-ready Node.js app installed and fully configured on your machine. The app comes with many built-in features, such as authentication using JWT, request validation, unit and integration tests, continuous integration, docker support, API documentation, pagination, etc. The app has a utility ApiError class to which you can attach a response code and a message, and then throw it from anywhere (catchAsync will catch it). Request data is validated using Joi. Check the documentation for more details on how to write Joi validation schemas. In production mode, only info, warn, and error logs will be printed to the console. It is up to the server (or process manager) to actually read them from the console and store them in log files. -
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RunJS
A JavaScript playground that auto-evaluates as you type
Explore and experiment with JavaScript and TypeScript, visualize your ideas and get instant feedback as you type. Exploring JavaScript has never been easier. Live feedback as you type, with per-line results, makes it super clear what your code is doing. With RunJS you have access to Node and Browser APIs, including full DOM access. This gives you a level of versatility that's not possible in a standard REPL or Chrome console. Babel and TypeScript support enables you to write modern, up-to-date syntax. NPM integration makes trying out new libraries quick and easy. RunJS is a JavaScript playground that auto-evaluates your code as you type and outputs the results to a console pane. TypeScript and modern JavaScript features are supported through Babel transpilation. Additionally, Node and browser APIs are available. -
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SQLite compiled to JavaScript
A javascript library to run SQLite on the web
sql.js is a javascript SQL database. It allows you to create a relational database and query it entirely in the browser. You can try it in this online demo. It uses a virtual database file stored in memory, and thus doesn't persist the changes made to the database. However, it allows you to import any existing sqlite file, and to export the created database as a JavaScript typed array. sql.js uses emscripten to compile SQLite to webassembly (or to javascript code for compatibility with older browsers). It includes contributed math and string extension functions. sql.js can be used like any traditional JavaScript library. If you are building a native application in JavaScript (using Electron for instance), or are working in node.js, you will likely prefer to use a native binding of SQLite to JavaScript. A native binding will not only be faster because it will run native code, but it will also be able to work on database files directly instead of having to load the entire database. -
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Search-Index
A persistent, network resilient, full text search library
Search-Index is a lightweight and fast JavaScript-based search engine that enables full-text search indexing and retrieval for web applications. -
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Serverless Offline
Emulate AWS λ and API Gateway locally
This Serverless plugin emulates AWS λ and API Gateway on your local machine to speed up your development cycles. To do so, it starts an HTTP server that handles the request's lifecycle like APIG does and invokes your handlers. Options passed on the command line override YAML options. List of available function names and their corresponding serverless.yml function keys are listed after the server starts. This is important if you use a custom naming scheme for your functions as serverless-offline will use your custom name. The left side is the function's key in your serverless.yml and the right side is the function name that is used to call the function externally such as aws-sdk. Once you run a function that boots up the Docker container, it'll look through the layers for that function, download them in order to your layers folder, and save a hash of your layers so it can be re-used in future. -
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Slugify
Slugify a string
Slugify is a JavaScript library that converts strings into URL-friendly slugs, handling various languages and special characters. -
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Snowpack
ESM-powered frontend build tool
Snowpack is a frontend build tool built around native JavaScript ES modules. It was designed to make development faster by avoiding the traditional full-bundle step during local work. The dev server can start quickly and reflect browser changes almost instantly. Snowpack supports modern web project needs such as TypeScript, JSX, CSS Modules, plugins, and framework integrations. It can also connect with bundlers for optimized production builds when a project needs minification, code splitting, or compatibility output. The repository is no longer actively maintained, so it is best understood as an important legacy tool that influenced the modern unbundled development workflow. -
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Spina
Spina CMS
Spina CMS is an easy-to-use CMS that features a clean interface without distractions. A Rails-based CMS designed for ease of use, with a clean and intuitive interface. -
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Sprite Cow
Sprite Cow helps you get the background-position of sprites
Sprite Cow is a browser-based utility for extracting CSS coordinates and dimensions from image sprite sheets. Users load a sprite sheet and identify an individual sprite instead of manually measuring its position in an image editor. The tool generates copyable CSS containing background-position, width, and height values. It was created for developers who prefer manually optimized sprite sheets but want to avoid repetitive coordinate calculations. Additional options include percentage-based positioning and 50 percent sprite scaling for high-density displays. It also supports image reloading, configurable CSS paths, drag-and-drop filename detection, and offline use through application caching. -
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THANKS
Give thanks to the open source maintainers you depend on
THANKS is a small command-line tool that helps developers discover which open-source maintainers behind their npm dependencies are accepting donations. It is built around a simple idea: projects benefit from countless unpaid maintainer hours, so users should have an easy way to support the people who keep those projects alive. Instead of forcing teams to research every dependency manually, thanks scans the current project and surfaces donation opportunities directly from the terminal. It can be run instantly with npx or installed globally for repeated use across projects. The project also invites maintainers to add themselves to its donation list through pull requests, making it community-driven. It is best suited for JavaScript and Node.js developers who want to make open-source funding more visible and actionable. -
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Teedy
Lightweight document management system
Teedy is a lightweight document management system packed with all the features you can expect from big expensive solutions but still easy to use. A modern interface to keep your important documents in one place and your business operations clear. Do not spend time using the tool, just upload your documents and you will find them easily when needed. Precise user permissions, encryption and datacenters in France will make sure only the right people can see the right documents. As a content-oriented document management system, the user interface is not cluttered with buttons and menus and works both on desktop and mobile. Document searching has never been easier thanks to the powerful full-text search engine in Teddy. You can search in images (embedded OCR), DOCX, ODT, TXT, PDF, and more. Verify or validate your documents with people of your organization using workflows. -
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Telegram Media Downloader
Download media files from a telegram conversation/chat/channel
Download media files from a telegram conversation/chat/channel up to 2GiB per file. -
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The Pope Bot
Autonomous AI agent that you can configure and build
The Pope Bot is an autonomous AI agent framework that lets users configure and run an AI-powered agent that can perform tasks continuously, day in and day out, by leveraging GitHub Actions, commit history, and secure workflows. It’s designed so that every action taken by the agent is logged as a git commit, giving users complete visibility into what the agent did, why it did it, and when, which makes actions auditable and reversible. The framework treats the repository itself as the agent’s “brain,” and GitHub Actions serve as the compute layer, enabling tasks to run securely without exposing sensitive API keys to the underlying AI. The system integrates with messaging platforms like Telegram, where users can interact with the bot, trigger actions, or receive notifications, and supports scheduling and automation through patterns of request handling. -
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Ultimate React Course
https://github.com/jonasschmedtmann/ultimate-react-course
Ultimate React Course is the official repository for Jonas Schmedtmann’s Ultimate React course. It provides starter files, final project code, and FAQs that support a complete React learning path from fundamentals to more advanced application patterns. The course materials cover modern React development with components, props, state, effects, forms, routing, data fetching, state management, and larger real-world projects. Learners can begin each section from starter code, then compare their work against the final implementation when debugging or reviewing concepts. The repository is primarily an educational companion rather than a reusable app framework. It is useful for students who want a structured React practice environment with many examples built exactly as shown in the course. -
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Vizzu
Library for animated data visualizations and data stories
Vizzu is a free, open-source Javascript/C++ library utilizing a generic dataviz engine that generates many types of charts and seamlessly animates between them. It can be used to create static charts but more importantly, it is designed for building animated data stories and interactive explorers as Vizzu enables showing different perspectives of the data that the viewers can easily follow due to the animation. Create a placeholder element that will contain the rendered chart. The Vizzu constructor has to load Vizzu's WebAssembly module asynchronously to prevent blocking the whole page. Because of this, any method except animate() will throw an exception while the library is not initialized. There is an initializing promise in the Vizzu class, which will resolve when initialization is finished. You can call all methods after this promise is resolved.
