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Node.js vs Preact

Node.js logo

Node.js

Web Development

JavaScript runtime built on Chrome's V8 JavaScript engine

From
Free
Rated
-
Full reviewWebsite
Preact logo

Preact

Web Development

3kB alternative to React with the same modern API

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Node.js slower cold-start time in serverless environments compared to Bun which wakes up in under 5ms; Preact compatibility through preact/compat is good but not total, and some React libraries break in ways that are hard to diagnose
  • They diverge on capability: Node.js covers V8 JavaScript engine, Preact covers 3kB runtime.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Node.js and Preact actually diverge.

Attributes where Node.js and Preact differ
AttributeNode.jsPreact
Pricing modelUnknownOpen source, no licence fee
PlatformsLinux, Windows, macOSWeb
Founded2009Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Web Development).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Node.js

  • V8 JavaScript engine
  • Event-driven architecture
  • Non-blocking I/O
  • npm package ecosystem
  • Cross-platform runtime
  • Built-in modules
  • Asynchronous programming
  • Real-time applications

Only in Preact

  • 3kB runtime
  • preact/compat
  • Same modern API
  • Fast rendering

What people use each for

The jobs each tool is most often brought in to do.

Node.js

  • Web server developmentnot Preact
  • API developmentnot Preact
  • Real-time applicationsnot Preact
  • Microservicesnot Preact
  • Command-line toolsnot Preact
  • Desktop applicationsnot Preact

Preact

  • Embedded widgets that load inside someone else’s page and must stay smallnot Node.js
  • Marketing and content sites where JavaScript payload affects Core Web Vitalsnot Node.js
  • Applications targeting low-bandwidth or low-powered devicesnot Node.js

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Node.js

  • Slower cold-start time in serverless environments compared to Bun which wakes up in under 5ms
  • Requires separate setup for TypeScript support unlike Deno which treats TypeScript as native
  • Larger memory footprint on startup compared to lightweight alternatives like Deno

Preact

  • Compatibility through preact/compat is good but not total, and some React libraries break in ways that are hard to diagnose
  • Behavioural differences from React exist in edge cases, particularly around event handling
  • A much smaller community, so unusual problems have fewer existing answers than React

Pricing, plan by plan

Node.js

Free

No published plan breakdown. See the Node.js review.

Preact

Free
  • PreactFree
    • Full library
    • Commercial use permitted
    • No usage limits

Which should you pick?

Choose Node.js if

  • You need v8 javascript engine.
  • You want to start without paying.
  • You work on Linux, Windows, macOS.
  • You also want event-driven architecture.
Node.js review

Choose Preact if

  • You need 3kb runtime.
  • You want to start without paying.
  • You also want preact/compat.
Preact review

Questions people ask

Is Node.js or Preact better?
Neither clearly leads. Node.js starts at Free and Preact at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Node.js or Preact?
Node.js starts at Free and Preact at Free.
Does Node.js or Preact run on more platforms?
Node.js runs on Linux, Windows, macOS. Preact runs on Web.
Can I use Node.js for free?
Both have a free tier, so you can try either at no cost before committing.
What is Node.js best used for?
Node.js is most often used for web server development, api development, real-time applications, microservices. Of those, web server development and api development are not what Preact is typically brought in for.
What can Node.js do that Preact cannot?
Node.js covers V8 JavaScript engine, Event-driven architecture, Non-blocking I/O, npm package ecosystem. Preact covers 3kB runtime, preact/compat, Same modern API, Fast rendering.

Answered from the vendors’ own pages

Node.js: What is Node.js current LTS version in 2026?

Node.js 22 is the current LTS in 2026, with Node.js 24 now available as the mature version with native TypeScript support and enhanced security features.

Source
Preact: Is Preact free?

Yes, open source under the MIT licence.

Node.js: On what platforms can Node.js run?

Node.js is a cross-platform JavaScript runtime that runs on Windows, Linux, Unix, macOS, and other operating systems including z/OS, SmartOS, FreeBSD, OpenBSD, and IBM AIX.

Source
Preact: Can I use React libraries with Preact?

Most, through the preact/compat layer. Compatibility is good but not complete, so libraries relying on React internals can break.

Node.js: Is Node.js free and open-source?

Yes. Node.js is free and open-source software. It was created by Ryan Dahl in 2009 and officially presented as open-source on May 27, 2009.

Source
Preact: Why choose Preact over React?

Bundle size, almost always. If payload is not a binding constraint, React’s ecosystem is usually the better trade.

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