Open Source JavaScript Software - Page 59
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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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HyperUI
Free Tailwind CSS v4 components for your next project
HyperUI is a large, copy-and-paste library of Tailwind CSS components aimed at speeding up interface building without adding heavy JavaScript. It groups components by common product needs—navigation, hero sections, pricing, forms, cards, tables, and full e-commerce flows—so teams can assemble pages quickly from consistent building blocks. Each snippet is written as semantic HTML with Tailwind utility classes, making it easy to customize spacing, color, and typography through a project’s Tailwind config. The components are responsive by default, using grid and flex patterns that adapt cleanly from mobile to widescreen layouts. Accessibility is treated pragmatically: markup favors proper roles and focus states, and most interactive behaviors can be wired with lightweight libraries or framework code if desired. Because everything is plain markup, adoption is frictionless in any stack (React, Vue, Svelte, Rails, Laravel), and designers can tweak styling without refactoring component logic. -
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Immutable.js
Immutable collections for JavaScript
Immutable.js offers a collection of Persistent Immutable data structures for JavaScript. Immutable data is unchangeable once created, which makes application development so much simpler. There’s no defensive copying, and you get advanced memoization and change detection techniques with simple logic. Persistent data gives you a mutative API, one that doesn’t update data in-place but always produces new and updated data. The data structures that Immutable.js provides include List, Stack, Map, OrderedMap, Set and more. These structures are highly efficient on modern JavaScript VMs, and minimize the need to cache or copy data. -
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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. -
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Isotope
Filter and sort layouts
Include the Isotope .js file in your site. Isotope works on a container element with a group of similar child items. All sizing of items is handled by your CSS. You can use Isotope as a jQuery plugin. You can use Isotope with vanilla JS. You can initialize Isotope in HTML, without writing any JavaScript. All options are optional, but itemSelector is recommended. Layout modes have their own separate options. We recommend always setting itemSelector. itemSelector is useful to exclude sizing elements or other elements that are not part of the layout. If you want to use Isotope to develop commercial sites, themes, projects, and applications, the Commercial license is the appropriate license. With this option, your source code is kept proprietary. If you are creating an open source application under a license compatible with the GNU GPL license v3, you may use Isotope under the terms of the GPLv3. -
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JSON Loader
JSON loader module for webpack
JSON loader module for webpack. -
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Koa-socket-2
Socket.IO for Koa
Koa-socket-2 uses socket.io v3. It is recommended that you connect to a koa-socket-2 server with a socket.io v3 client. Koa-socket-2 is only compatible with the Koa v2 style of middleware (where context is passed as a parameter). This project helps you start a SocketIO server using Koa and NodeJS. However, Google's Go language -- or GoLang -- allows you to write code that compiles down to binary. It can be a very good way to take your SocketIO server to the next level by running faster and requiring less overhead than runtime environments like NodeJS. -
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Live-Forensicator
A suite of Tools to aid Incidence Response and Live Forensics
Live-Forensicator is a toolkit intended for live forensic collection and initial triage on Windows machines. It automates the capture of volatile information—running processes, network connections, loaded drivers, account sessions, and in-memory artifacts—into a consistent artifact set that investigators can analyze offline. The tool tries to be non-invasive while collecting sensitive data quickly and logs the collection steps to preserve chain-of-custody details and to help auditors understand potential collection side effects. Because live collection can alter system state, Live-Forensicator includes options to limit intrusive actions and to capture hashes, timestamps, and provenance metadata to aid later validation. The output bundles are often compatible with other forensic parsers and workflows, which helps teams move from initial triage to deep-dive forensic analysis without re-running collection tasks. -
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LoLLMs WEBUI
Local AI WebUI for running and managing large language models offlineA
lollms-webui is a locally hosted web interface designed to run and manage large language models without relying on external services. It provides users with a centralized environment to interact with multiple AI models, making it suitable for experimentation, development, and personal use. lollms-webui emphasizes offline capability, allowing users to maintain privacy and control over their data while still accessing advanced AI features. It integrates model management tools that help users download, configure, and switch between different language models with ease. It is built to be user-friendly while still offering advanced customization options for power users who want deeper control over model behavior. Additionally, it supports extensibility through plugins or modular components, enabling users to expand functionality as needed. Overall, it serves as a flexible platform for running AI locally with a focus on usability and adaptability. -
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Logger for Redux
Logger for Redux
Logger for Redux. Now maintained by LogRocket! LogRocket is a production Redux logging tool that lets you replay problems as if they happened in your own browser. Instead of guessing why errors happen or asking users for screenshots and log dumps, LogRocket lets you replay Redux actions + state, network requests, console logs, and see a video of what the user saw. Transform action before print. Eg. convert an Immutable object to plain JSON. Transform state before print. Eg. convert an Immutable object to plain JSON. -
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Loop Engineering
Practical patterns, starters & CLI tools for loop engineering with AI
Loop Engineering is a practical reference repository for designing loop-based workflows with AI coding agents. It focuses on replacing repeated manual prompting with systems that prompt, verify, schedule, and hand off work over time. The project is aimed at developers using tools such as Grok, Claude Code, Codex, Cursor, and other coding agents. It explains core building blocks such as scheduling, worktrees, skills, plugins, connectors, sub-agents, and persistent memory or state. The repository includes production loop patterns, quickstarts, starters, checklists, safety notes, and real-world stories. It also provides CLI tools such as loop-audit, loop-init, and loop-cost to scaffold, evaluate, and estimate agent loop workflows. -
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MCP Mongo Server
A Model Context Protocol Server for MongoDB
A Model Context Protocol server that provides access to MongoDB databases, enabling Large Language Models to inspect collection schemas and execute MongoDB operations. -
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Magnific Popup
Light and responsive lightbox script with focus on performance
Magnific Popup is a responsive lightbox & dialog script with focus on performance and providing best experience for user with any device. You may put any HTML content in each gallery item and mix content types. Three simple popups with different scaling settings. Fits horizontally and vertically, only horizontally, or with no gaps, zoom animation, close icon in top-right corner. If you wish to open the popup only after image is fully loaded, you may preload image via JS. Or use scaled down image instead of thumbnail. Zoom effect works only with images, for now. Animations are added with simple CSS transitions, you can make them look however you wish. Entered data is not lost if you open and close the popup or if you go to another page and then press back browser button. You have full control of what is displayed in popup, align it to any side via CSS, enable or disable scroll on right side of window, whatever. -
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Mavo
Create web applications entirely by writing HTML and CSS
Create complex, reactive, persistent web applications by just writing HTML & CSS, without a single line of JavaScript and no server backend. Developed in the Haystack Group at MIT CSAIL and led by Lea Verou. Mavo extends the syntax of HTML to describe Web applications that manage, store, and transform data. Store data in the cloud, locally, or not at all by just changing an HTML attribute. Edit data right on the website, with an intuitive, auto-generated, customizable interface. No more wrestling with CMSes and servers! Multimedia uploads to your page via drag & drop, pasting, or browsing, without a single line of code. Perform calculations right in the HTML, that update when needed. No need to write JavaScript! Mavo uses familiar HTML-based syntax and can be used even by people with no programming experience. This is not wishful thinking; it’s published, peer-reviewed research. -
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MediaElement.js
A dependable HTML media framework
Boost your player with Chromecast, Google Analytics and more. MediaElement.js is a blazingly fast and amazingly powerful HTML5 audio and video library that creates a unified feel for media files (MP4, MP3, FLV), streaming content (HLS, M(PEG)-DASH, RTMP), and embeddable players like YouTube, Vimeo, Twitch, DailyMotion, Facebook, and SoundCloud. MediaElement.js is a set of custom Flash plugins that mimic the HTML5 MediaElement API for browsers that don't support HTML5 or don't support the media codecs you're using. Instead of using Flash as a fallback, Flash is used to make the browser seem HTML5 compliant and enable codecs like H.264 (via Flash) on all browsers. In general, MediaElement.js supports IE11+, MS Edge, Chrome, Firefox, Safari, iOS 8+ and Android 4.0+. It is strongly recommended to read the entire documentation and check the demo folder to get the most out of this package. -
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MirrorVR
Live, desktop mirror for web-based virtual reality app on mobile
Ever wanted to see what's going on in your user's virtual reality headset? MirrorVR is a live mirror for your aframe virtual reality projects: whatever your user sees in a mobile phone virtual reality headset is reproduced across any desktop viewer. -
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Mithril.js
A JavaScript framework for building brilliant applications
Mithril is a modern client-side JavaScript framework for building Single Page Applications. It's small (< 10kb gzip), fast and provides routing and XHR utilities out of the box. Mithril is used by companies like Vimeo and Nike, and open source platforms like Lichess. Mithril supports IE11, Firefox ESR, and the last two versions of Firefox, Edge, Safari, and Chrome. No polyfills required. By default, Mithril views are described using hyperscript. Hyperscript offers a terse syntax that can be indented more naturally than HTML for complex tags, and since its syntax is just JavaScript, it's possible to leverage a lot of JavaScript tooling ecosystem. Mithril is all about getting meaningful work done efficiently. Doing file uploads? The docs show you how. Authentication? Documented too. Exit animations? You got it. No extra libraries, no magic. -
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NativeScript CardView
NativeScript widget for Material Design CardView
nativescript-cardview is a NativeScript plugin that provides a Material Design card component for mobile applications. It allows developers to create card-based layouts with shadow effects and rounded corners, enhancing the UI's visual appeal. -
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NiL.JS
JavaScript engine for .NET written in C#
NiL.JS is a JavaScript engine written in C#, capable of executing ECMAScript 6.0 (ES2015) code. It allows embedding JavaScript execution within .NET applications, providing a bridge between C# and JavaScript. -
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Node Archiver
a streaming interface for archive generation
Archiver is a Node.js library that provides a streaming interface for creating archive files in various formats, such as ZIP and TAR, supporting multiple compression methods. -
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Node RDKafka
Node.js bindings for librdkafka
A high-performance Node.js client for Apache Kafka, built on top of librdkafka, providing bindings for efficient Kafka message processing. -
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Node Sonos HTTP API
An HTTP API bridge for Sonos easing automation
A Node.js API that provides an HTTP interface for controlling Sonos speakers, enabling automation and integration with other smart home systems. -
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Nothing Private
A proof of concept that any website can identify and track you
This project is a proof of concept that any website can identify and track you, even if you are using private browsing or incognito mode in your web browser. Many people think that they can hide their identity if they are using private browsing or incognito mode. This project will prove that they are wrong. -
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OneNav
Bookmark and navigation management system
OneNav is a self-hosted bookmark and navigation management system designed to organize and categorize personal or team bookmarks efficiently. It features a responsive web interface, making it easy to access bookmarks from any device. OneNav is highly customizable, allowing users to create categories, add descriptions, and manage links with ease, making it ideal for personal use or as a team resource. -
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OpenAI Quickstart Node
Node.js example app from the OpenAI API quickstart tutorial
OpenAI Quickstart Node.js is an example application designed to help developers learn how to use the OpenAI API with Node.js. The repository provides structured sample code for a variety of API endpoints, including chat completions, assistants, embeddings, fine-tuning, moderation, batch processing, and image generation. Each folder contains runnable scripts that demonstrate both basic usage and more advanced scenarios. By following the examples, developers can quickly understand how to authenticate with an API key, send requests, and handle responses within a Node.js environment. The project is a practical starting point for building AI-powered applications, serving as a foundation for experimentation and integration into larger projects. It simplifies onboarding by offering step-by-step setup instructions and ready-to-use code snippets that can be adapted for custom needs. -
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Operator Mono Ligatures
Add ligatures to Operator Mono similar to Fira Code
Add ligatures to Operator Mono similar to Fira Code. This project will generate new OpenType fonts for Operator Mono that includes ligatures similar to those found in the popular Fira Code font. These ligatures were custom-created using Glyphs. There are even italic versions of the ligatures. All new redesigned ligatures with better hinting. Updated font generation to support advanced OpenType features like those found in Fira Code. For example, the cursor now moves inside the ligature. It also handles repeating characters properly.
