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Libraries · head to head

Mantine vs Preact

Mantine logo

Mantine

Libraries

React component library of over a hundred components with hooks, under the MIT licence

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: Mantine the project depends on a very small maintainer group, so a single person stepping away would leave a hundred components in a codebase you did not write and cannot easily replace.; 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: Mantine covers Over a hundred components, Preact covers 3kB runtime.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Mantine and Preact actually diverge.

Attributes where Mantine and Preact differ
AttributeMantinePreact
CategoryLibrariesWeb Development

Identical on both: starting price (Free), pricing model (Open source, no licence fee), free tier (Yes), platforms (Web), 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 Mantine

  • Over a hundred components
  • Hooks package
  • CSS variable theming
  • Form handling
  • Server rendering support
  • Dark mode

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.

Mantine

  • An internal admin interface that needs to look finished without a designernot Preact
  • A startup building product features rather than a design system in its first yearnot Preact
  • Projects that want a date picker, rich text editor and charts from one maintained source rather than five dependenciesnot Preact
  • Using the hooks package in an application that already has its own component stylingnot Preact

Preact

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

Where each one falls short

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

Mantine

  • The project depends on a very small maintainer group, so a single person stepping away would leave a hundred components in a codebase you did not write and cannot easily replace.
  • Version seven replaced the Emotion styling runtime with CSS modules, and projects that had used style props extensively faced a real migration, which is evidence that major versions here can be disruptive.
  • Components arrive styled, so imposing a distinctive brand means overriding an opinionated design rather than composing from unstyled primitives, and heavily customised Mantine tends to fight the library.
  • Accessibility is handled component by component with no published conformance audit, which is a problem for public sector and enterprise buyers who must evidence conformance rather than assume it.
  • There is no commercial support to buy, so an organisation that needs a contractual escalation path for a blocking bug has no route beyond opening an issue.

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

Mantine

Free
  • Mantine$undefined/year
    • MIT licensed, free for commercial use, no paid tier or enterprise edition
    • Funded by sponsorship, so there is no support contract to buy

Preact

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

Which should you pick?

Choose Mantine if

  • You need over a hundred components.
  • You want to start without paying.
  • You also want hooks package.
Mantine 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 Mantine or Preact better?
Neither clearly leads. Mantine 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, Mantine or Preact?
Mantine starts at Free and Preact at Free.
Does Mantine or Preact run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Mantine for free?
Both have a free tier, so you can try either at no cost before committing.
What is Mantine best used for?
Mantine is most often used for an internal admin interface that needs to look finished without a designer, a startup building product features rather than a design system in its first year, projects that want a date picker, rich text editor and charts from one maintained source rather than five dependencies, using the hooks package in an application that already has its own component styling. Of those, an internal admin interface that needs to look finished without a designer and a startup building product features rather than a design system in its first year are not what Preact is typically brought in for.
What can Mantine do that Preact cannot?
Mantine covers Over a hundred components, Hooks package, CSS variable theming, Form handling. Preact covers 3kB runtime, preact/compat, Same modern API, Fast rendering.

Answered from the vendors’ own pages

Mantine: Is Mantine free for commercial use?

Yes, MIT licensed with no paid tier. Support is community based, which is the trade against a commercially backed library.

Preact: Is Preact free?

Yes, open source under the MIT licence.

Mantine: How does it compare with shadcn/ui?

shadcn/ui copies component source into your repository so you own and maintain it. Mantine is a dependency you upgrade. Ownership versus upgrades is the actual choice.

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.

Mantine: Was the version seven migration painful?

For projects leaning on Emotion style props, yes. Read the migration guide before committing to Mantine for a long lived application.

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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