Top Alternatives to Meteor

Ruby on Rails is a powerful, open-source server-side web application framework written in Ruby. It provides a robust structure for building database-backed web applications quickly and efficiently, emphasizing convention over configuration.

KnockoutJS is a JavaScript library that helps you create rich, responsive display and editor user interfaces with a clean underlying data model. It leverages the Model-View-ViewModel (MVVM) pattern and features declarative data-binding.

Derby is a JavaScript framework for building modern, real-time web applications. It provides a complete solution for both the backend and frontend, emphasizing data synchronization and developer productivity through its unique architectural approach.

Express.js is a robust and flexible Node.js web application framework that provides a minimalist set of features for building web and mobile applications, and APIs. It's designed to be fast and unopinionated, allowing developers to structure their applications as they see fit.

Aurelia is a modern, open-source JavaScript client framework designed for building robust and maintainable web, mobile, and desktop applications, emphasizing simplicity and Convention over Configuration.

RemoteStorage is an open protocol enabling per-user data storage on the web. It allows web applications to read and write user data directly to their private storage space, promoting data ownership and privacy.

GUN is an open-source, decentralized, and distributed graph database with real-time synchronization capabilities. It simplifies building collaborative and offline-first applications by providing peer-to-peer data replication and a flexible data model.