# Watt

Node.js application server.

Source: [Console review](<https://console.dev/tools/watt>)

Website: [https://docs.platformatic.dev/docs/Overview](<https://docs.platformatic.dev/docs/Overview>)

Profile updated: 2026-10-16

Category: [Web servers](<https://console.dev/tools/categories/devops-web-server>)

## Supported tech stack

Research checked: 2026-10-11

### Runs on

- Node.js (Runtime)

### Integrates with

- Astro (Framework)
- Express (Framework)
- Fastify (Framework)
- NestJS (Framework)
- Next.js (Framework)
- Nitro (Framework)
- Nuxt (Framework)
- React Router (Framework)
- Remix (Framework)
- TanStack Start (Framework)
- Vite (Integration)

Source: [Research source](<https://docs.platformatic.dev/docs/Overview>)

Documented compatibility; coverage may be incomplete. Written in describes implementation, not user-project language support.

Node.js application server integrates Express, Fastify, Astro, Next.js, Nitro, Nuxt, React Router, Remix, TanStack Start, Vite and NestJS.

## Console’s review — 2025-12-11

Reviewed: 2025-12-11

Author: [David Mytton](<https://console.dev/about#david-mytton>)

Citation: [This review](<https://console.dev/tools/watt#review_367f052312a869eceff31755a15673ff4d3151df4a7af4c1baacb8719223155b>)

### What we like

Uses SO\_REUSEPORT built into the Linux kernel for connection distribution, eliminating significant overhead. Handles crash restarts, graceful shutdown, monitoring, deployments for multiple applications. Shared HTTP cache across workers. Allows integration of databases, APIs, and multiple frameworks within a single app server.

### Tradeoffs

Supports observability through Prometheus and Jaeger, but needs extra work to get data into services like DataDog unless you ingest through OTLP.

This review reflects Console’s assessment at publication on 2025-12-11. Features and limitations may have changed since the review date.

## Is Watt a fit?

Based on [Console’s review published on 2025-12-11](<https://console.dev/tools/watt#review_367f052312a869eceff31755a15673ff4d3151df4a7af4c1baacb8719223155b>).

Summary updated: 2026-10-16

### Who it’s for

Developers of Node.js applications should consider Watt

### Why consider it

Watt eliminates significant overhead for connection distribution

### Keep in mind

Watt requires extra work to integrate with some observability services

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