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Web Development · head to head

Preact vs Vagrant

Preact logo

Preact

Web Development

3kB alternative to React with the same modern API

From
Free
Rated
-
Full reviewWebsite
Vagrant logo

Vagrant

Cloud

Development environments made easy

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; Vagrant vagrant 2.4.3 and later is licensed under the Business Source License 1.1 with IBM Corporation as licensor, not an OSI open source licence
  • They diverge on capability: Preact covers 3kB runtime, Vagrant covers Box management.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Preact and Vagrant actually diverge.

Attributes where Preact and Vagrant differ
AttributePreactVagrant
Pricing modelOpen source, no licence feeopen-source
PlatformsWebLinux, Windows, Mac
CategoryWeb DevelopmentCloud
FoundedUnknown2010

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 Vagrant

  • Box management
  • Provider support
  • Multi-machine setups
  • Provisioners
  • Networking
  • Synced folders
  • Snapshots
  • Plugins

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 Vagrant
  • Marketing and content sites where JavaScript payload affects Core Web Vitalsnot Vagrant
  • Applications targeting low-bandwidth or low-powered devicesnot Vagrant

Vagrant

  • Reproducible local development environments defined in a Vagrantfilenot Preact
  • Provisioning identical VMs across VirtualBox, VMware and Hyper-V for a teamnot Preact
  • Sandboxing multi-machine setups on a developer laptopnot 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

Vagrant

  • Vagrant 2.4.3 and later is licensed under the Business Source License 1.1 with IBM Corporation as licensor, not an OSI open source licence
  • The Additional Use Grant forbids offering Vagrant to third parties on a hosted or embedded basis in a paid product that competes with IBM's paid versions of Vagrant
  • Each version converts to the MPL 2.0 Change License only four years after that version is first published
  • Uses that fall outside the Additional Use Grant require a separately negotiated licence from the licensor

Pricing, plan by plan

Preact

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

Vagrant

Free
  • Open SourceFree
    • Development environment provisioning
    • Multiple providers
    • Provisioner support

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 Vagrant if

  • You need box management.
  • You want to start without paying.
  • You work on Linux, Windows, Mac.
  • You also want provider support.
Vagrant review

Questions people ask

Is Preact or Vagrant better?
Neither clearly leads. Preact starts at Free and Vagrant at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Preact or Vagrant?
Preact starts at Free and Vagrant at Free.
Does Preact or Vagrant run on more platforms?
Preact runs on Web. Vagrant runs on Linux, Windows, Mac.
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 Vagrant is typically brought in for.
What can Preact do that Vagrant cannot?
Preact covers 3kB runtime, preact/compat, Same modern API, Fast rendering. Vagrant covers Box management, Provider support, Multi-machine setups, Provisioners.

Answered from the vendors’ own pages

Preact: Is Preact free?

Yes, open source under the MIT licence.

Vagrant: Is Vagrant free to use?

Vagrant is a free, open-source command-line utility for managing virtual machine lifecycles.

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.

Vagrant: Does Vagrant offer a paid tier?

Vagrant itself is free. HashiCorp offers a HCP Vagrant Registry with a free tier for use with Vagrant.

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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