Browse free open source JavaScript Frameworks and projects below. Use the toggles on the left to filter open source JavaScript Frameworks by OS, license, language, programming language, and project status.

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  • 1
    KOACH

    KOACH

    Production ready Koa2 boilerplate.

    Production-ready boilerplate for building APIs with koa2 using Mongodb as the database and http/2 as the communication protocol.
    Downloads: 0 This Week
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  • 2
    This is an open multi-language web based job application for managing job applications. This is a web-based Java application made using IT Mill Toolkit and Mootools frameworks.
    Downloads: 0 This Week
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  • 3
    KeystoneJS

    KeystoneJS

    Node.js CMS and web app framework

    KeystoneJS is an open source framework for developing database-driven websites, applications and APIs in Node.js. Built on Express and MongoDB. Keystone will configure express - the de facto web server for node.js - for you and connect to your MongoDB database using Mongoose, the leading ODM package. Keystone starts with best practices for setting up your MV* application, and makes it easy to manage your templates, views and routes. IDs, Strings, Booleans, Dates and Numbers are the building blocks of your database. Keystone builds on these with useful, real-world field types like name, email, password, address, image and relationship fields (and more). Whether you use it while you're building out your application, or in production as a database content management system, Keystone's Admin UI will save you time and make managing your data easy. Sometimes, async code can get complicated to do simple things.
    Downloads: 0 This Week
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  • 4
    Kickstart

    Kickstart

    Kickstart is a CSS library designed for modularity and fast page

    Kickstart's CSS is only 80kb and even smaller when you roll your own from the Sass mixins. Not only is the Kickstart JS smaller than Bootstrap and Foundation, it also doesn't require jQuery--drastically reducing page load times. Kickstart has been used in production websites for over three years. Kickstart is a library, not a framework. This means you only use the CSS you need instead of slowing down your site with a complete UI library. Look how easy it is to create this Navbar. Most components in Kickstart require only one mixin to bring markup to life. For users preferring a static CSS file, simple CSS classes are available to quickly write up components. The Kickstart documentation can be toggled between static- and mixin-usage. Kickstart has a lot of components, but it's also extendible.
    Downloads: 0 This Week
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  • 5
    Kinetic Scrolling Plugin

    Kinetic Scrolling Plugin

    Kinetic Scrolling plugin for Canvas using Phaser Framework

    Phaser Kinetic Scrolling Plugin introduces kinetic scrolling behavior to Phaser games, mimicking the natural scrolling experience found in mobile applications. It's particularly useful for creating scrollable menus, maps, or content areas within games.
    Downloads: 0 This Week
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  • 6
    KineticJS

    KineticJS

    HTML5 Canvas JavaScript framework

    KineticJS is an HTML5 Canvas JavaScript framework that extends the 2d context by enabling canvas interactivity for desktop and mobile applications. KineticJS is a fast, robust, HTML5 Canvas Library that is no longer maintained. The last stable version is v5.1.0, and it's pretty darn solid. I am also no longer maintaining the CDN which hosted KineticJS files. If your site was using KineticJS hosted on Amazon's S3 CDN services, I'm very sorry for having to pull the plug, but it was getting very costly. For your convenience, you can still find all of the stable versions of KineticJS below in a tar file. Just download the version that you need, untar it, and add it to your website servers or CDN.
    Downloads: 0 This Week
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  • 7
    Kjora Framework is a lightweight PHP 5.3 framework. It provides an architecture to build a Model-View based website, with a dynamic data access object, and a "One Page - One Class" system to design it.
    Downloads: 0 This Week
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  • 8
    Knockout

    Knockout

    Tool to create rich, responsive UIs with JavaScript

    Easily associate DOM elements with model data using a concise, readable syntax. When your data model's state changes, your UI updates automatically. Implicitly set up chains of relationships between model data, to transform and combine it. Quickly generate sophisticated, nested UIs as a function of your model data. Get started with knockout.js quickly, learning to build single-page applications, custom bindings and more with interactive tutorials. Knockout is a JavaScript MVVM (a modern variant of MVC) library that makes it easier to create rich, desktop-like user interfaces with JavaScript and HTML. It uses observers to make your UI automatically stay in sync with an underlying data model, along with a powerful and extensible set of declarative bindings to enable productive development. For Node.js developers, Knockout is also available from npm.
    Downloads: 0 This Week
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  • 9
    KnowledgeFrame is a proven, mature Java framework for agile design and development of sophisticated business database applications based on live metadata and live business rules, using a declarative approach. Links to RETS 1.7 protocol.
    Downloads: 0 This Week
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  • 10
    Koa

    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.
    Downloads: 0 This Week
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  • 11
    Koa React Universal

    Koa React Universal

    lightweight React-Koa2 universal boilerplate, only what is essential

    lightweight React-Koa2 universal boilerplate, only what is essential. This project is dedicated to building a simple yet powerful Koa-React-Universal boilerplate. All key ingredients are in src/development、src/production and webpack configurations, which are easy to understand、set-up and extend. We promise to use the most recent & official packages(as much as we can), no weird or tricky stuff, keeping this project clean and fully customizable.
    Downloads: 0 This Week
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  • 12
    Koa Vue Fullstack Boilerplate

    Koa Vue Fullstack Boilerplate

    A lightweight boilerplate for a universal webapp based on koa

    Vue.js, Koa.js, Node.js, and MongoDB full-stack lightweight example applications. Authentication, CRUD, and access control are included. This project aims to build a small but structured full-stack application, so it would be relatively clear for a programmer/beginner to understand how to build a website from scratch.
    Downloads: 0 This Week
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  • 13
    Koa-socket-2

    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.
    Downloads: 0 This Week
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  • 14
    Koa2 RESTful API

    Koa2 RESTful API

    RESTful API Server

    This is a lightweight RESTful API Server scaffolding based on Koa2, supporting ES6. Since the Koa version is upgraded to 2.3.0+, in order to match the corresponding dependencies, the Node.js version is required to be greater than or equal to v8.0.0 (v11.13.0 is recommended), and the NPM version is greater than or equal to v5.0.0. It is recommended to use yarn instead of npm. This scaffolding only installs some necessary plug-ins that do not conflict with Koa2 to build a RESTful API Server, with instructions for each plug-in. Syntax checking with ESlint. Therefore, the scaffolding mainly provides RESTful API, so the front-end static resource processing is not considered for the time being, and only the basic method of static resource access is provided to facilitate access to resources such as pictures uploaded by users to the server. The basic directory structure is consistent with vue-cli and can be used with front-end frameworks such as React, AngularJS, and Vue.js.
    Downloads: 0 This Week
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  • 15
    Koalerplate

    Koalerplate

    Simple Koa Boilerplate for APIs

    A simple Koa 2 boilerplate for API's using ES6.
    Downloads: 0 This Week
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  • 16
    Kohi is an object-oriented PHP framework that aims to be light-weight, easy-to-learn and does not want to stand in the programmer's way - a framework for non-framework folks.
    Downloads: 0 This Week
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  • 17
    Kube Forwarder

    Kube Forwarder

    Easy to use Kubernetes port forwarding manager

    Kube Forwarder watches for connection status and always tries reconnect on failure. Bookmark and forward Kubernetes services from multiple clusters easily like never before. Use import and export functionality to share bookmarked services with your team or simply backup it. Use port-forwarding without installing kubectl and avoid explanations to developers on how to use it. You don't need expose services to the global network, install extra Auth reverse proxy services or use a VPN. Using reverse proxy does not work with all services and requires extra configuration from developers, when port forwarding works with almost any services out of the box. Connect to any pod with port-forwarding in the cluster and investigate the problem, without exposing your service globally. Import of the JSON file that could be generated via Kube Forwarder export functionality.
    Downloads: 0 This Week
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  • 18
    Lad

    Lad

    Lad is the best Node.js framework

    Lad is the best Node.js framework. Made by a former Express TC and Koa team member. Lad boasts dozens of features and is extremely configurable. These microservices are preconfigured for security, performance, and graceful reloading. Redis, sessions, flash toast, and modal SweetAlert2 messages (uses ioredis which has support for Cluster, Sentinel, and more). Koa-based web app and API servers. Pagination built-in (using ctx-paginate). RESTful API with BasicAuth and versioning. Automated job scheduler with cron and human-readable syntax (backed by Mongoose and Bree). Passport-based authentication and group-based (Unix-like) permissioning. Stripe-inspired error handling. Mongoose and MongoDB with common database plugins. Email template engine with Nodemailer and local rendering. The proxy eliminates the need for Nginx reverse-proxy or Apache virtual hosts. Multilingual through built-in i18n translation support (see configuration).
    Downloads: 0 This Week
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  • 19
    Larametrics

    Larametrics

    A self-hosted metrics and notifications platform for Laravel apps

    A self-hosted metrics and notifications platform for Laravel apps, Larametrics records and notifies you of changes made to models, incoming requests, and messages written to the log. Once you have the package tied in to your Laravel app, it starts collecting data based off of the default config file and storing it in your database. In order to view the dashboard associated with Larametrics and analyse your metrics and notifications, you'll need to add in a helper method to your routes file of choice.
    Downloads: 0 This Week
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  • 20
    Laravel Vue Pagination

    Laravel Vue Pagination

    A Vue.js pagination component for Laravel paginators

    Laravel Vue Pagination is a Vue.js pagination component for Laravel. It provides out-of-the-box components for Bootstrap 4/5 and Tailwind CSS.
    Downloads: 0 This Week
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  • 21
    Laravel Web Tinker

    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.
    Downloads: 0 This Week
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  • 22
    This project aims to provide a library for integrating OpenLaszlo rich web applications with JSF-based server-side components.
    Downloads: 0 This Week
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  • 23
    Laszlo Jsf Integration Library
    Downloads: 0 This Week
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  • 24
    Leanote Desktop App

    Leanote Desktop App

    Leanote Desktop App, based on Electron(atom-shell)

    Leanote Desktop App, based on Electron(atom-shell). Use Leanote as a notebook/note, and manage your knowledge on Leanote. Do you like markdown? don't worry, Leanote support it. You can public your knowledge then Leanote is your blog! An awesome blog where you can create your own theme. Share your knowledge with your friends on Leanote. Collaborate with friends to improve your knowledge.
    Downloads: 0 This Week
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  • 25
    Legato is above all a fast and lightweight, complete Web framework offering both server-side (PHP 5) and client-side (JavaScript) components to ease in the development and maintenance of today's demanding Web sites.
    Downloads: 0 This Week
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