The Backend in development is the side that we don't see, it communicates between the database and the browser. Whenever we log in an accountor make a purchase from an online store, our browser sends a request to the server-side, which returns information to the frontend side to be displayed in the browser again.

What are Backend Frameworks?

Backend frameworks are server-side libraries that help build the backend structure and configuration of any website, they bring us the tools and libraries needed so that operations can be simplified.

Below we’ll see some of the most popular Backend Frameworks based on the number of Stars of the repositories exported from GitHub Archive.

1. Laravel

Laravel is one of the best frameworks for backend development, it’s based on the PHP language andthe MVC ( Model-View-Controller) design architecture. It’s beginner-friendly and its primary aim is ‘create a process of upgrading fun and simple for websites’, the community is active and has extensive documentation.

2. Django

Django is a high-level framework based inPython language and theModel-View design architecture; almost everything any developer would require is already included.

Django doesn’t need installing and maintaining third-party plugins, as everything in the framework functions together, it’s a good option for complex projects.

Top 5 Popular Backend Frameworks in 2021

3. Flask

Flask is a microframework based on the Python programming language. It’s described as a microframework as it doesn’t need any particular libraries or tools, it doesn’t contain form validation and database abstraction layer.

Flask supports extensions that can add utilities and features for a well developed dynamic web application.

Unlike Django, Flask is a good optionfor developing smaller projects.

4. ExpressJS

Express, is a backend framework for Node.js, released as free and open-source software under the MIT License, thanks to the skyrocketing popularity of Node.js, Express is quickly becoming one of the best frameworks for web development nowadays.

It's one ofthe best backendframeworks for building RESTful APIs and web applications,it's verypopular in the development stacks like MEAN, MERN or MEVN together with the MongoDB database and any JavaScript front-end framework or library.

5. Ruby on Rails

Ruby on Rails is basedon the Ruby programming language and theMVC design architecture, it’s open source software and is considered a beginner-friendly framework.

Ruby on Rails is used for having a faultless database table formation, the scaffolding of views, and migrations. It could be combined with JavaScript, CSS, and HTML to develop dynamic applications.