NestJS vs Express in 2026: How to Choose the Right Node.js Framework

A technical comparison published on DEV Community weighs Express and NestJS for backend development in 2026, covering code structure, performance benchmarks, and team scalability. Express remains minimal and flexible, offering routing and middleware with low setup time, while NestJS provides a structured, opinionated architecture with built-in dependency injection, guards, and microservice support. Benchmarks on Node 22 show NestJS with Express adapter is roughly 12% slower than pure Express, but NestJS paired with the Fastify adapter outperforms Express at around 14,500 requests per second. The guide recommends Express for small APIs under 10 endpoints or solo projects, and NestJS for larger teams, complex auth, or microservice architectures. The author cautions that migrating from Express to NestJS after scaling can cost two to three development sprints, making an early NestJS choice the lower-risk option in most cases.