NifraFastify vs Express in 2026
Updated 2026-08-04 · Disclosure: we build Nifra, a third option measured in the same runs. The Fastify-vs-Express verdict below stands on its own.
The eternal Node question, answered with measurements instead of vibes: Fastify is roughly 1.4-1.7x Express in our published runs, has real validation built in, and its plugin system is better engineered. Express still wins on ubiquity. Details, then the verdict.
Throughput
| Workload | Express | Fastify |
|---|---|---|
| GET /users/:id | 44,176 req/s | 73,663 req/s |
| POST /users (validated) | 37,883 req/s | 53,442 req/s |
(oha @ 50 conns, Node 26, identical route semantics; Express validates with its usual middleware, Fastify with compiled JSON Schema. Full methodology + every framework we measure: benchmarks.) A raw node:http baseline does ~71-80k on the GET in the same runs - Express costs you close to half the runtime's ceiling.
Beyond speed
- Validation: Fastify ships JSON-Schema validation compiled to fast functions; Express leaves it to middleware you assemble. This is the biggest practical gap - unvalidated input on a public endpoint is how incidents start.
- TypeScript: both are typed via
@types; Fastify's generics and type providers go further. Neither gives you a typed client for your frontend. - Ecosystem: Express has the largest middleware library ever assembled and every tutorial ever written. Fastify's plugin encapsulation is better engineered for large codebases. Express wins breadth; Fastify wins architecture.
- Maintenance: both are actively maintained in 2026; Express 5 finally landed but changed little structurally.
Verdict
New backend-only Node service: Fastify, and it isn't close - you get ~1.5x the throughput and validation as a first-class citizen. Existing Express app that works: keep it; migrations rarely pay for themselves on speed alone.
When neither is the answer
Both are backend-only. If the API and a frontend are one product, a typed contract that crosses that boundary saves more engineering time than any req/s number: Nifra infers the entire client from the server's TypeScript type (zero codegen), serves SSR for five UI frameworks, validates by default, and in the same benchmark runs level-to-ahead of Fastify on Node (the honest head-to-head) while moving to Bun unchanged for ~2x more (measured). Different category, same speed class - worth knowing it exists before defaulting.