The JavaScript backend framework landscape is complex, with four popular options: Express, Next.js, Gatsby, and NuxtJS. Each has its strengths and weaknesses, including performance characteristics, rendering strategies, and SEO-friendliness. To choose the best framework for a side project, consider factors such as full-stack development requirements, desired flexibility or out-of-the-box modules, and preferred rendering strategy. This post aims to provide an overview of each framework, highlighting their unique features and use cases, with recommendations for learning and choosing the most suitable framework based on individual needs.