Node.js: is one of the most popular javascripts known for back-end development, especially when paired with JavaScript on the front end.
React.js: A JavaScript library used for building user interfaces, primarily for single-page applications.
Angular: A platform and framework for building single-page client applications using HTML and TypeScript.
Vue.js: A progressive framework used for building user interfaces.
Django: A high-level Python Web framework that encourages rapid development and clean, pragmatic design.
Ruby on Rails: A server-side web application framework written in Ruby, following the model-view-controller (MVC) framework.
Express.js: A web application framework for Node.js, designed for building web applications and APIs.
Spring Boot: A Java-based framework used for building stand-alone, production-grade Spring based Applications that you can "just run".