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Software · head to head

Express.js vs Packer

E

Express.js

Software

Fast, unopinionated, minimalist web framework for Node.js

From
On request
Rated
-
Full reviewWebsite
P

Packer

Software

Build automated machine images

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Packer has a free tier, so it costs nothing to try first.
  • Each has a real cost: Express.js governed by the OpenJS Foundation with no vendor or paid tier, per expressjs.com; as open source software it has no pricing to compare; Packer packer 1.10.0 and later is licensed under the Business Source License 1.1 with IBM Corporation as licensor, not an OSI open source licence

Where they differ

Only the attributes on which Express.js and Packer actually diverge.

Attributes where Express.js and Packer differ
AttributeExpress.jsPacker
Starting priceOn requestFree
Pricing modelquoteopen-source
Free tierNoYes
PlatformsWebLinux, Windows, Mac
FoundedUnknown2013

Identical on both: user rating (Not yet rated), category (Unknown).

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 Express.js

Nothing recorded that Packer does not also cover.

Only in Packer

  • Image building
  • Multi-platform support
  • Provisioners
  • Builders
  • Post-processors
  • Variables
  • Data sources
  • Validation

What people use each for

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

Express.js

No use cases recorded yet. See the Express.js review.

Packer

  • Building identical machine images for multiple clouds from one templatenot Express.js
  • Baking golden AMIs and VM images into a CI pipelinenot Express.js
  • Creating immutable infrastructure artifacts consumed by Terraformnot Express.js

Where each one falls short

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

Express.js

  • Governed by the OpenJS Foundation with no vendor or paid tier, per expressjs.com; as open source software it has no pricing to compare
  • Express.js provides only a thin layer of fundamental routing features by its own description, requiring separate middleware modules for functionality like body parsing, sessions or authentication

Packer

  • Packer 1.10.0 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 Packer to third parties on a hosted or embedded basis in a paid product that competes with IBM's paid versions of Packer
  • Each version converts to the MPL 2.0 Change License only four years after that version is first published, and the Change Date is set separately per version
  • Alternative licensing for uses outside the grant must be arranged with the licensor rather than taken under the public licence

Pricing, plan by plan

Express.js

On request

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

Packer

Free
  • Open SourceFree
    • Multi-platform image building
    • Template-driven
    • Provisioner support

Which should you pick?

Choose Express.js if

Nothing in the data separates Express.js from Packer on the points above - pick on price and on how each one feels to use.

Express.js review

Choose Packer if

  • You need image building.
  • You want to start without paying.
  • You work on Linux, Windows, Mac.
  • You also want multi-platform support.
Packer review

Questions people ask

Is Express.js or Packer better?
Neither clearly leads. Express.js starts at On request and Packer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Express.js or Packer?
Packer has a free tier; the other does not. Paid plans start at On request for Express.js and Free for Packer.
Does Express.js or Packer run on more platforms?
Express.js runs on Web. Packer runs on Linux, Windows, Mac.
Can I use Packer for free?
Yes. Packer has a free tier, so you can try it without paying. Express.js starts at On request.
What can Express.js do that Packer cannot?
Packer covers Image building, Multi-platform support, Provisioners, Builders.
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Related pages

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