Opa Alternatives

Ruby on Rails is an open source full-stack web application framework for the Ruby programming...

ASP.NET is a free web framework for building great Web sites and Web applications using HTML, CSS and JavaScript.

A JavaScript framework for creating ambitious web apps

Give your JS App some Backbone with Models, Views, Collections, and Events

AngularJS lets you extend HTML vocabulary for your application. The resulting environment is extraordinarily expressive, readable, and quick to develop.

Catalyst CEO Champions For Change Companies Outperform the S&P 500 in Advancing Women. Catalyst released data showing that as a group Catalyst CEO Champions For Change companies are outperforming their peers on advancing women into leadership.

Oracle Application Express enables the user to design, develop and deploy beautiful, responsive, database-driven applications using only web browser

Classy web-development dressed in a DSL

Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple

Fast, light, complete: 70+ jQuery-based UI widgets in one powerful toolset

Next generation web framework for node.js

MVC framework making it easy to write realtime, collaborative applications that run in both Node.

a microframework for Python based on Werkzeug, Jinja 2 and good intentions.