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Developer Tools · head to head

Keil MDK vs Puppet

Keil MDK logo

Keil MDK

Developer Tools

Microcontroller Development Kit for Arm-based devices

From
Free
Free plan
Yes
Full reviewWebsite
Puppet logo

Puppet

Cloud

Infrastructure automation for enterprises

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Keil MDK pricing for Essential and Professional subscriptions not disclosed on primary site; Puppet no pricing published for commercial tiers; requires contacting sales
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Keil MDK and Puppet actually diverge.

Attributes where Keil MDK and Puppet differ
AttributeKeil MDKPuppet
Pricing modelfreemiumquote
PlatformsWebLinux, Windows, Mac, Api
CategoryDeveloper ToolsCloud
FoundedUnknown2005

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 Keil MDK

Nothing recorded that Puppet does not also cover.

Only in Puppet

  • Manifests
  • Modules
  • Classes
  • Variables
  • Facts
  • Puppet Master
  • Hiera
  • Facter

What people use each for

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

Keil MDK

  • Embedded software developmentnot Puppet
  • ARM microcontroller programmingnot Puppet
  • Professional development environmentsnot Puppet

Puppet

  • Infrastructure automationnot Keil MDK
  • Configuration managementnot Keil MDK
  • DevOps at scalenot Keil MDK
  • Enterprise infrastructurenot Keil MDK

Where each one falls short

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

Keil MDK

  • Pricing for Essential and Professional subscriptions not disclosed on primary site
  • Customers must contact Arm Developer Tools store for subscription rates

Puppet

  • No pricing published for commercial tiers; requires contacting sales
  • Enterprise and Advanced tiers require custom quote
  • Free tier limited to 25 nodes maximum

Pricing, plan by plan

Keil MDK

Free

No published plan breakdown. See the Keil MDK review.

Puppet

Free
  • DeveloperFree
    • Up to 25 nodes
  • Core Commercial$null/custom
    • 25+ nodes
    • Vendor-backed SLAs
    • Training with Certified Engineers
  • Enterprise$null/custom
    • Web GUI
    • RBAC
    • Multi-environment support
  • Advanced$null/custom
    • AI-powered features
    • Advanced patching
    • Vulnerability remediation

Which should you pick?

Choose Keil MDK if

  • You want to start without paying.
Keil MDK review

Choose Puppet if

  • You need manifests.
  • You want to start without paying.
  • You work on Linux, Windows, Mac, Api.
  • You also want modules.
Puppet review

Questions people ask

Is Keil MDK or Puppet better?
Neither clearly leads. Keil MDK starts at Free and Puppet at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keil MDK or Puppet?
Keil MDK starts at Free and Puppet at Free.
Does Keil MDK or Puppet run on more platforms?
Keil MDK runs on Web. Puppet runs on Linux, Windows, Mac, Api.
Can I use Keil MDK for free?
Both have a free tier, so you can try either at no cost before committing.
What is Keil MDK best used for?
Keil MDK is most often used for embedded software development, arm microcontroller programming, professional development environments. Of those, embedded software development and arm microcontroller programming are not what Puppet is typically brought in for.
What can Keil MDK do that Puppet cannot?
Puppet covers Manifests, Modules, Classes, Variables.

Answered from the vendors’ own pages

Keil MDK: Does Keil MDK have a free version?

Yes, Keil MDK Community Edition is free for non-commercial projects. Essential and Professional editions are available as monthly or annual subscriptions.

Source
Puppet: How much does Puppet cost?

Puppet's Developer tier is free for up to 25 nodes. Commercial, Enterprise, and Advanced tiers require contacting their sales team for a custom quote.

Source
Keil MDK: How much do Keil MDK paid editions cost?

Specific pricing for Essential and Professional editions is not published on the main site. Rates are available from the Arm Developer Tools store or by contacting Arm sales.

Source
Puppet: Is there a free version of Puppet?

Yes, Puppet's Developer tier is free forever for up to 25 nodes of infrastructure.

Source
Puppet: What does the Enterprise tier include?

Puppet's Enterprise tier includes web GUI, RBAC, and multi-environment support for organizations managing infrastructure at scale, with pricing available upon request.

Source
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