Open Source JavaScript Software - Page 42
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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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Kener
Kener is a Modern Self hosted Status Page, batteries included
Kener: Open-source Node.js status page tool, designed to make service monitoring and incident handling a breeze. It offers a sleek and user-friendly interface that simplifies tracking service outages and improves how we communicate during incidents. And the best part? Kener integrates seamlessly with GitHub, making incident management a team effort—making it easier for us to track and fix issues together in a collaborative and friendly environment. -
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Koa
Expressive middleware for node.js using ES2017 async functions
Koa is a minimal, expressive web framework for Node.js created by the team behind Express, built around modern JavaScript features. Its middleware system uses async functions and an “onion” execution model, producing clean, sequential control flow for request/response handling. Koa keeps the core small and unopinionated—there’s no built-in router or templating—so developers compose only the pieces they need. The framework exposes a refined Context object to standardize request and response utilities without obscuring Node’s primitives. This design encourages readable middleware, robust error handling, and straightforward composition for tasks like authentication, logging, and body parsing. In production, Koa’s simplicity and async-first approach translate to predictable performance and maintainable server code. -
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Konsta UI
Mobile UI components made with Tailwind CSS
Pixel perfect mobile UI components built with Tailwind CSS. With iOS and Material Design components for React, Vue & Svelte. All Konsta UI components come with pixel-perfect native-like iOS and Material Design themes created using official design guidelines. Everything you need for your iOS and Android apps! Konsta UI is mostly designed to be used with "parent" frameworks like Ionic or Framework7. In this case, you use the "parent" framework as your app shell (routing, navigation, state management, native APIs, etc.) and Konsta UI components for inner pages/views UIs. Using it with frameworks like Capacitor and Cordova you can easily create real native apps with native look and feel. -
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LDAP Account Manager
LDAP Account Manager
LDAP Account Manager (LAM) is a webfrontend for managing entries (e.g. users, groups, DHCP settings) stored in an LDAP directory. LAM was designed to make LDAP management as easy as possible for the user. It abstracts from the technical details of LDAP and allows persons without technical background to manage LDAP entries. If needed, power users may still directly edit LDAP entries via the integrated LDAP browser. -
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LLM React App Javascript Template
The Javascript template for an LLM react node app
This template is an example project for a simple Large Language Model (LLM) application built on top of React and Node. This template was built on top of the React template app from nano-react-app and updated with a Node server that uses HuggingFace.js and LangChain.js to connect to supported large language models. Use this template to easily build and run an LLM app. -
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Laravel Auth
Laravel with user authentication, registration with email confirmation
Laravel 10 with user authentication, registration with email confirmation, social media authentication, password recovery, and captcha protection. Uses offical [Bootstrap 4]. This also makes full use of Controllers for the routes, templates for the views, and makes use of middleware for routing. 5 Minutes Stand-up time. Laravel 10 with user authentication, registration with email confirmation, social media authentication, password recovery, and captcha protection. Uses official Bootstrap 4. This also makes full use of Controllers for the routes, templates for the views, and makes use of middleware for routing. Project can be stood up in minutes. Laracasts offers thousands of video tutorials on Laravel, PHP, and JavaScript development. Check them out, see for yourself, and massively level up your development skills in the process. -
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Laravel Web Tinker
Tinker in your browser
Artisan's tinker command is a great way to tinker with your application in the terminal. Unfortunately running a few lines of code, making edits, and copy/pasting code can be bothersome. Wouldn't it be great to tinker in the browser? This package will add a route to your application where you can tinker to your heart's content. In case light hurts your eyes, there's a dark mode too. -
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Layui UI
An open source Web UI component library
layui is a set of open-source Web UI component library, which adopts its own classic modularization specifications and follows the development method of native HTML/CSS/JS. It is very easy to use and ready to use. Its style is simple and light, while its components are elegant and rich. Every detail from source code to usage method has been carefully crafted, which is very suitable for the rapid development of web interface. Layui is different from those front-end frameworks based on the bottom layer of MVVM, but it does not go against the road, but believes in returning to the basics. To be precise, it is more for back-end developers. You don’t need to get involved in various front-end tools. You only need to face the browser itself, and let all the elements and interactions you need come from here at your fingertips. -
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Lemon AI
Full-stack Open-source Self-Evolving General AI Agent
LemonAI is an open-source full-stack framework for building autonomous AI agents capable of performing complex tasks such as research, programming, data analysis, and document processing. The platform is designed to run primarily on local infrastructure, providing a privacy-focused alternative to cloud-dependent agent platforms. It integrates with local large language models through tools such as Ollama, vLLM, and other model runtimes while also allowing optional connections to external cloud models. The system includes a multi-agent architecture that supports planning, action execution, reflection, and memory, allowing the agent to reason through tasks and refine results iteratively. A key component of the framework is a virtual machine sandbox environment that safely executes code generated by the agent without affecting the host system. -
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Lepton
A lean snippet manager
Lepton is a beautiful open source snippet manager for ubuntu. Manage your Github gists with support for tags, search and sharing. Lepton features a rich-text editor and markdown viewer. Try the snap today! Lepton's can be customized by <home_dir>/.leptonrc! Theme (light/dark), Snippet, Editor, Logger, Proxy, Shortcuts, Enterprise, Notifications, and more! Check out the configuration docs to explore different customization options. Lepton is an open source project on GitHub. It's free and we don't accept donations. If you like, feel free to donate to Wikimedia Foundation, which helps sustain free knowledge through Wikipedia and its sister projects for people around the world. Lepton replies on GitHub APIs to detect the language. Build apps for macOS, Windows and Linux. -
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Librefox
Firefox with privacy enhancements
This project aims at enforcing the privacy and security of Firefox without forking the project. Librefox uses more than 500 privacy/security/performance settings, patches, Librefox-Addons (optional) and a cleaned bundle of Firefox (updater, crashreporter and Firefox's integrated addons that don't respect privacy are removed). Updated browser: because this project is not a fork, it is kept updated with the latest Firefox version. Limit internet access for extensions (firewall-test-feature). IJWY (I Just Want You To Shut Up): embedded server links and other calling home functions are removed (zero unauthorized connection by default). Settings protection: important settings are enforced/locked within mozilla.cfg and policies.json, those settings cannot be changed by addons/updates/Firefox or unwanted/accidental manipulation; To change those settings you can easily do it by editing mozilla.cfg and policies.json. -
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L’Atelier
L'atelier, a project management tool
A project management tool. -
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MDX
Markdown for the component era
MDX lets you use JSX in your markdown content. You can import components, such as interactive charts or alerts, and embed them within your content. This makes writing long-form content with components a blast. -
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MJML 4
The only framework that makes responsive-email easy
MJML is a markup language created by Mailjet and designed to reduce the pain of coding a responsive email. Its semantic syntax makes the language easy and straightforward while its rich standard components library shortens your development time and lightens your email codebase. MJML’s open-source engine takes care of translating the MJML you wrote into responsive HTML. -
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Manta
Flexible invoicing desktop app with beautiful & customizable templates
Painless invoicing with stunning customizable templates. Manta is a desktop application for creating invoices with beautiful and customizable templates. You can turn on/off field and save as default setting. Drag & drop for reordering items. This makes editing easier. Custom designed & highly customizable templates. Complete privacy and your financial data stays where it belongs. The main reason I decided to build this is because I need a simple tool to create good-looking invoices, estimates, and receipts but couldn't find one that suits my needs. I don't do invoicing for a living but I do need it occasionally so an ideal invoicing app just needs to be good at one thing and one thing only, which is making invoices. I really don't need full-fledged bookkeeping or accounting software. Financial data is sensitive and I believe that no one should know about your data except yourself. -
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Mapbox GL JS
Interactive, thoroughly customizable maps in the browser
Mapbox GL JS is a JavaScript library that uses WebGL to render interactive maps from vector tiles and Mapbox styles. It is part of the Mapbox GL ecosystem, which includes Mapbox Mobile, a compatible renderer written in C++ with bindings for desktop and mobile platforms. Mapbox GL JS is part of the cross-platform Mapbox GL ecosystem, which also includes compatible native SDKs for applications on Android, iOS, macOS, Qt, and React Native. Mapbox provides building blocks to add location features like maps, search, and navigation into any experience you create. To get started with GL JS or any of our other building blocks, sign up for a Mapbox account. In addition to GL JS, this repository contains code, issues, and test fixtures that are common to both GL JS and the native SDKs. Mapbox GL JS v2 enables 3D mapping with elevated terrain, customizable skies and atmospheric lighting, a new camera, and performance enhancements. -
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Marble Skill Taxonomy
Structured taxonomy of what children learn across the primary years
Marble Skill Taxonomy is an open structured dataset that maps what children learn across primary and elementary education. It breaks curriculum content into fine-grained micro-topics instead of leaving learning goals as broad standards. Each topic includes subject, domain, age range, description, evidence criteria, assessment prompt, and stable identifiers. The dataset also defines prerequisite relationships, so developers can trace what a learner should master before a concept. It aligns micro-topics to national curriculum standards such as NGSS, Common Core, and the UK National Curriculum. It is useful for learning platforms, curriculum tools, tutoring systems, assessment products, and education research projects. -
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Markdown Here
Write email in Markdown and render them before sending
If you’ve ever found writing email with code in it a hassle, Markdown Here is the perfect solution for you. Markdown Here is a browser extension that lets you write emails in Markdown, and then renders them before sending. It can also let you write Google Groups posts, blog posts, Evernote notes, Wordpress posts and more in Markdown, even in TeX mathematical formulae! Markdown Here is available for Google Chrome, Firefox, Safari, Opera, and Thunderbird. It supports syntax highlighting (once language has been specified in a fenced code block), insert tables, source code snippets and more! Discover how easy it can be to format your emails with Markdown Here! -
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Markdownify MCP Server
Convert files and web content into clean, usable Markdown easily
Markdownify MCP is a Model Context Protocol server that converts many types of files and web content into clean Markdown. It supports formats such as PDFs, images, audio with transcription, DOCX, XLSX, and PPTX, along with web sources like YouTube transcripts, Bing results, and general webpages. Markdownify MCP is designed to simplify content extraction and make data easier to read, share, and reuse in structured workflows. Developers can install dependencies, build, and run the server locally, then extend functionality by modifying its TypeScript-based tools and server logic. It also allows retrieval of existing Markdown files, making it useful for documentation, research, and AI-assisted workflows. By standardizing content into Markdown, it helps unify inputs across different sources for better processing and integration with AI tools and developer environments. -
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Marked
A markdown parser and compiler. Built for speed
A low-level markdown compiler for parsing markdown without caching or blocking for long periods of time. Light-weight while implementing all markdown features from the supported flavors & specifications. Available as a command-line interface (CLI) and running in client- or server-side JavaScript projects. The only completely secure system is the one that doesn't exist in the first place. Having said that, we take the security of Marked very seriously. To prevent ReDoS attacks you can run marked on a worker and terminate it when parsing takes longer than usual. Marked can be run in a worker thread on a node server, or a web worker in a browser. Only current and LTS Node.js versions are supported. End-of-life Node.js versions may become incompatible with Marked at any point in time. -
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Material Dashboard 2
Open Source Bootstrap 5 Material Design Admin
The most complex and innovative Dashboard Made by Creative Tim. Check our latest Freebie Bootstrap 5 Dashboard with a fresh, new design inspired by Google's Material Design 2. Designed for those who like bold elements and beautiful websites, Material Dashboard 2 is ready to help you create stunning websites and web apps. We created many examples for pages like Sign In, Notifications, Profile, and so on. Just choose between a Basic Design, an illustration, or a cover and you are good to go. Material Dashboard 2 is built with over 60 frontend individual elements, like buttons, inputs, navbars, nav tabs, cards, or alerts, giving you the freedom of choosing and combining. All components can take variations in color, which you can easily modify using SASS files and classes. -
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Maye
Maye a concise and small quick start tool
MayeIt is a small, simple, and easy-to-use quick-start tool. Don't look at the small size, its functions are still very diverse, such as multi-document drag and add start, fast key out, automatic multi-layer display, lnk file analysis, etc. The software has no complicated functions, and no garbage files will be generated during operation. Green is free of pollution. It only focuses on the rapid start of the file. It is a good helper for users to improve the operating experience of Windows. -
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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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Moment.js
Parse, validate, manipulate, and display dates in javascript
Moment is a JavaScript date and time library that simplifies parsing, formatting, arithmetic, and humanizing of dates. It supports many formats in input and output, internationalization (i18n), locale-based month/day names, relative time (for example, “3 days ago”), and chaining of operations (adding, subtracting, diffing). Developers often use it for calendar displays, scheduling, and manipulating times across time zones or daylight saving transitions. While it makes working with date strings convenient, moment maintains internal mutability, which has trade-offs with safety and chainability. Over time, newer alternatives with immutable and modular designs have emerged, but moment remains widely known and integrated in many legacy projects. Its comprehensive feature set and ease of use made it a standard for date-time handling in JavaScript for many years. -
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NSFWJS
Client-side indecent content checking powered by TensorFlow.js
NSFWJS is a simple JavaScript library that can quickly and quite accurately identify NSFW images, all in the client's browser. It is powered by TensorFlow.js and the NSFW detection model, and delivers around 90% accuracy that is improving each time. NSFWJS classifies images with percentages under five categories, namely: drawing and neutral, which are both safe for work; sexy, which includes sexually explicit images; and hentai and porn, which are pornographic drawings and images. NSFWJS offers a 'browserified' version, an NSFW filter web extension that filters out NSFW images from your browser, and also has a separate React Native app.
