NifraBun vs Node.js in 2026: same app, both runtimes
Updated 2026-08-04 · We build Nifra, a framework that runs unchanged on both runtimes - which is exactly what makes this comparison clean.
Most Bun-vs-Node comparisons benchmark different frameworks on each runtime and call it a runtime difference. Ours holds the application constant: the same Nifra app, same routes, same validation, benchmarked on both. That isolates what the runtime is actually worth.
The numbers
| Workload (identical app) | Node 26 | Bun 1.3 | Bun advantage |
|---|---|---|---|
| GET /users/:id | 74,544 req/s | 130,866 req/s | ~1.8x |
| POST /users (validated) | 59,764 req/s | 98,427 req/s | ~1.6x |
| SSR (React page, per request) | 27,144 req/s | 33,729 req/s | ~1.2x |
(oha @ 50 conns, medians, harness public - all rows here.) The pattern is the honest headline: Bun's advantage is largest on raw HTTP work (~1.6-1.8x), and shrinks as your own JavaScript dominates the request (~1.2x on SSR, and near-zero on a DB-bound endpoint where the runtime waits on Postgres either way).
What Bun actually buys you
- HTTP serving at roughly double Node's throughput for cheap endpoints
- One toolchain: runtime + package manager + test runner + bundler
- Startup fast enough to change how dev loops and serverless cold starts feel
What Node still holds
- A decade+ of production hardening, observability tooling, and ops knowledge
- Perfect ecosystem compatibility - the long tail of npm just works
- Organizational reality: your platform team already runs it
The part people miss: it doesn't have to be a decision
The runtime only locks you in if your framework does. A Nifra app treats the runtime as an adapter: develop and deploy on Node today, move the identical code to Bun when the throughput matters (or Deno, or edge workers). The numbers above are that story measured - nobody rewrote anything between the two columns. On Node, Nifra runs level-to-ahead of Fastify (details); on Bun it serves at 101% of a hand-rolled Bun.serve baseline - so you are not paying a framework tax on either side.
Verdict
New project, no organizational constraint: start on Bun - the throughput and toolchain are real. Existing Node estate: stay until an endpoint is CPU-bound on request handling, then move that service. Either way, pick application code that is portable between them - bunx create-nifra my-app is one way to get that for free.