The Best 45 Opa Alternatives

  • Node.js icon

    Node.js

    Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.

    Free Open Source Mac OS X Windows Linux BSD Self-Hosted

  • AngularJS

    HTML is great for declaring static documents, but it falters when we try to use it for declaring dynamic views in web-applications. AngularJS lets you extend HTML vocabulary for your application.

    Free Open Source Mac OS X Windows Linux Web

  • Meteor

    Meteor is a set of new technologies for building top-quality web apps in a fraction of the time.

    Free Open Source Mac OS X Windows Linux

  • Polymer

    Polymer is a library that uses the latest web technologies to let you create custom HTML elements. Build anything from a button to a complete application as an encapsulated, reusable element that works across desktop and mobile.

    Free Open Source Mac OS X Windows Linux

  • ExpressJS

    Fast, unopinionated, minimalist web framework for Node.js Express is a project of the Node.js Foundation Source code : https://github.com/expressjs/expressjs.com

    Free Open Source Windows Linux Mac JavaScript Node.JS

  • KnockoutJS

    Knockout is a JavaScript library that helps you to create rich, responsive display and editor user interfaces with a clean underlying data model. Any time you have sections of UI that update dynamically (e.g.

    Free Open Source Mac OS X Windows Linux

  • total.js

    Free web application framework for building Web sites and Web applications using JavaScript, HTML and CSS.

    Free Open Source Mac OS X Windows Linux Web

  • Durandal

    Durandal is a cross-device, cross-platform client framework written in JavaScript and designed to make Single Page Applications (SPAs) easy to create and maintain.

    Free Open Source Mac OS X Windows Linux

  • Ractive.js

    Ractive.js is different. It solves some of the biggest headaches in web development – data binding, efficient DOM updates, event handling – and does so with almost no...

    Free Open Source Mac OS X Windows Linux

  • Harp Platform

    The Harp Platform is the easiest way for anyone to create an exceptional website. Landing Pages, galleries, blogs, e-commerce, domains, hosting, analytics, 24/7 support - all included.

    Free Open Source Mac OS X Windows Linux

  • Pedestal

    Pedestal is a web application framework written in Clojure that aims to bring both the language and its principles to client and server-side development.

    Free Open Source Mac OS X Linux

  • Twisted

    Twisted is an event-driven network programming framework written in Python and licensed under the MIT License. Twisted projects variously support TCP, UDP, SSL/TLS, IP...

    Free Open Source Mac OS X Windows Linux

  • Harp

    Harp is a production-ready web server. Rapidly build static sites and client-side applications using , and more—no configuration necessary.

    Free Open Source Mac OS X Windows Linux

  • Chaplin

    Chaplin is an architecture for JavaScript applications using the Backbone.js library. Chaplin addresses Backbone’s limitations by providing a lightweight and flexible...

    Free Open Source Mac OS X Windows Linux

  • Enyo

    Enyo is a JavaScript app framework enabling developers build native-quality HTML5 apps that run everywhere — from phones and tablets to PCs and TVs.

    Free Open Source Mac OS X Windows Linux Android iPhone

  • MontageJS

    MontageJS is a modern, full stack HTML5 framework designed to create single-page applications—fast! MontageJS uses time-tested design patterns and software principles...

    Free Open Source Mac OS X Windows Linux

  • hapi

    A rich framework for building web applications and services. hapi is a simple to use configuration-centric framework with built-in support for input validation, caching...

    Free Open Source Mac OS X Windows Linux

  • flatiron

    flatiron is an adaptable framework for building modern web applications. It was built from the ground up for use with Javascript and Node.js.

    Free Open Source Mac OS X Windows Linux

  • V8cgi

    v8cgi is a server side (FastCGI or Apache module) and client side shell/batch scripting language. It's based on Google's V8 JavaScript implementation. It's...

    Free Open Source Windows Linux