Spring is a powerful Java-based framework for building large, modular, and robust applications, with a particular focus on dependency injection (DI) and aspect-oriented programming (AOP). It sits at the heart of an ecosystem that includes Spring Boot, Spring Data, Spring Security, and more.
Thanks to its IoC core you can design architectures where components are managed and wired automatically, simplifying both maintenance and testing. Spring MVC and WebFlux offer a choice between traditional and reactive web development, and with Spring Boot you can kickstart projects quickly without cumbersome configuration.
The framework is modular - you pick only the parts you need: web, data, batch, integration, security, and more. This, combined with support for modern Java versions, makes Spring a favorite for both startups and large enterprises building scalable, future-proof systems.

