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Preact vs WordPress

Preact logo

Preact

Web Development

3kB alternative to React with the same modern API

From
Free
Rated
-
Full reviewWebsite
WordPress logo

WordPress

Content Creation

Create a beautiful website, blog, or app

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Preact compatibility through preact/compat is good but not total, and some React libraries break in ways that are hard to diagnose; WordPress self-hosted installation requires PHP 8.3 and MySQL 8.0 or MariaDB 10.11 minimum; older versions expose security vulnerabilities
  • They diverge on capability: Preact covers 3kB runtime, WordPress covers Content management.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Preact and WordPress actually diverge.

Attributes where Preact and WordPress differ
AttributePreactWordPress
Pricing modelOpen source, no licence feeopen-source
PlatformsWebWeb (self-hosted), WordPress.com (SaaS)
CategoryWeb DevelopmentContent Creation
FoundedUnknown2003

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

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 Preact

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

Only in WordPress

  • Content management
  • Theme system
  • Plugin architecture
  • User management
  • SEO optimization
  • Media management
  • Comment system
  • Multilingual support

What people use each for

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

Preact

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

WordPress

  • Content management and blog publishingnot Preact
  • Website building with themes and pluginsnot Preact
  • E-commerce with WooCommercenot Preact
  • Community sites and forumsnot Preact

Where each one falls short

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

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

WordPress

  • Self-hosted installation requires PHP 8.3 and MySQL 8.0 or MariaDB 10.11 minimum; older versions expose security vulnerabilities
  • Requires web server (Apache or Nginx) setup and ongoing maintenance; not suitable for serverless deployment
  • HTTPS mandatory for all installations; HTTP-only setups are not supported
  • Self-hosting requires responsibility for security patches, backups, and server administration

Pricing, plan by plan

Preact

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

WordPress

Free

No published plan breakdown. See the WordPress review.

Which should you pick?

Choose Preact if

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

Choose WordPress if

  • You need content management.
  • You want to start without paying.
  • You work on Web (self-hosted), WordPress.com (SaaS).
  • You also want theme system.
WordPress review

Questions people ask

Is Preact or WordPress better?
Neither clearly leads. Preact starts at Free and WordPress at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Preact or WordPress?
Preact starts at Free and WordPress at Free.
Does Preact or WordPress run on more platforms?
Preact runs on Web. WordPress runs on Web (self-hosted), WordPress.com (SaaS).
Can I use Preact for free?
Both have a free tier, so you can try either at no cost before committing.
What is Preact best used for?
Preact is most often used for embedded widgets that load inside someone else’s page and must stay small, marketing and content sites where javascript payload affects core web vitals, applications targeting low-bandwidth or low-powered devices. Of those, embedded widgets that load inside someone else’s page and must stay small and marketing and content sites where javascript payload affects core web vitals are not what WordPress is typically brought in for.
What can Preact do that WordPress cannot?
Preact covers 3kB runtime, preact/compat, Same modern API, Fast rendering. WordPress covers Content management, Theme system, Plugin architecture, User management.

Answered from the vendors’ own pages

Preact: Is Preact free?

Yes, open source under the MIT licence.

WordPress: Does WordPress charge licensing fees for using the software?

WordPress is free and open source software, meaning there are no licensing costs to download or use the platform itself.

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.

WordPress: What costs should I expect when running a WordPress site?

While WordPress software is free, you will typically need to pay separately for web hosting, domain registration, and optional premium themes or plugins. These costs are not part of WordPress itself but are provided by third-party services.

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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