What are the key differences between MERN, MEVN, and PERN stacks—and when is MERN the ideal choice in 2025?

Clarifies when to pick MERN over alternatives, focusing on frontend ecosystem, language commonality, and data structure needs.

• MERN uses React; MEVN uses Vue; PERN swaps MongoDB for PostgreSQL. • MERN is ideal when you want the mature React ecosystem, React Native portability, and broad job availability. • MEVN suits fast prototyping or small teams; PERN suits relational data needs or SQL-heavy applications. Tags: mern-stack, mevn-stack, pern-stack, react, vue, full-stack