Laravel Lumen is described as 'Lumen is the stunningly fast micro-framework by Laravel. Use the Laravel features you love like Eloquent, caching, queues, validation, routing, middleware, and the powerful Laravel service container. All with almost zero configuration' and is an app in the Development category. There are more than 50 alternatives to Laravel Lumen for a variety of platforms, including Mac, Windows, Linux, Node.JS and Self-Hosted solutions. The best alternative is ExpressJS, which is both free and Open Source. Other great apps like Laravel Lumen are Meteor (Free, Open Source), Nest (Free, Open Source), ember.js (Free, Open Source) and FeathersJS (Free, Open Source).
You can write less code with Ember's Handlebars integrated templates that update automatically when the underlying data changes. Ember.js incorporates common idioms so you can focus on the development of your application ( and not reinventing the wheel ).
Expressive middleware for node.js using generators via co to make web applications and APIs more enjoyable to write. Koa's middleware flow in a stack-like manner allowing you to perform actions downstream, then filter and manipulate the response upstream.
Ractive.js is a template-driven UI library that transforms your templates, styles and logic into blueprints for highly interactive apps. Ractive.js works for you, not the other way around. You do not need to learn new terminologies, concepts, and methodologies.