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Developer Tools · head to head

Keil MDK vs OpsLevel

Keil MDK logo

Keil MDK

Developer Tools

Microcontroller Development Kit for Arm-based devices

From
Free
Rated
-
Full reviewWebsite
OpsLevel logo

OpsLevel

Developer Tools

Internal developer portal that scores service ownership and production readiness

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Keil MDK has a free tier, so it costs nothing to try first.
  • Each has a real cost: Keil MDK pricing for Essential and Professional subscriptions not disclosed on primary site; OpsLevel opsLevel does not publish prices at all, not even a starting figure, so you cannot size a budget or compare against Backstage's zero licence cost without entering a sales cycle.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

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

Attributes where Keil MDK and OpsLevel differ
AttributeKeil MDKOpsLevel
Starting priceFreeOn request
Pricing modelfreemiumquote
Free tierYesNo

Identical on both: platforms (Web), user rating (Not yet rated), category (Developer Tools).

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 OpsLevel does not also cover.

Only in OpsLevel

  • Service catalogue
  • Scorecards and rubric
  • Checks
  • Campaigns
  • Self-service actions
  • Slack and Teams integration
  • Catalogue auto-enrichment
  • Deployment on request

What people use each for

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

Keil MDK

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

OpsLevel

  • A platform team that needs to prove every production service has a named owner and an on-call rota before an auditnot Keil MDK
  • Driving a fleet-wide migration such as a runtime upgrade across 400 services with a deadline and visible progressnot Keil MDK
  • Giving developers a paved road to create a new service from a template without waiting on the platform teamnot Keil MDK
  • An organisation where an incident took an hour to route because nobody could identify the owning teamnot 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

OpsLevel

  • OpsLevel does not publish prices at all, not even a starting figure, so you cannot size a budget or compare against Backstage's zero licence cost without entering a sales cycle.
  • The Standard plan caps at 50 users, which is below the size at which service ownership becomes a real problem, so most genuine buyers land on Enterprise and its unpublished pricing.
  • Scores are only as honest as the metadata teams maintain; where ownership records go stale the rubric produces confident numbers about a catalogue that no longer reflects reality, and leadership acts on them.
  • It reports on quality rather than producing it, so it can generate friction between platform teams who set the rubric and product teams who see it as a scoreboard imposed on them without extra headcount to fix the findings.
  • As a hosted product it needs read access to source control, cloud accounts and observability tooling, which is a meaningful vendor review in regulated environments; on-premises exists but only on the Enterprise tier.

Pricing, plan by plan

Keil MDK

Free

No published plan breakdown. See the Keil MDK review.

OpsLevel

On request
  • Standard$undefined/year
    • Up to 50 users
    • Unlimited catalogued components
    • Scorecards, campaigns and the global rubric
  • Enterprise$undefined/year
    • Unlimited users
    • Custom integrations
    • Customisable dashboards

Which should you pick?

Choose Keil MDK if

  • You want to start without paying.
Keil MDK review

Choose OpsLevel if

  • You need service catalogue.
  • You also want scorecards and rubric.
OpsLevel review

Questions people ask

Is Keil MDK or OpsLevel better?
Neither clearly leads. Keil MDK starts at Free and OpsLevel at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keil MDK or OpsLevel?
Keil MDK has a free tier; the other does not. Paid plans start at Free for Keil MDK and On request for OpsLevel.
Does Keil MDK or OpsLevel run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Keil MDK for free?
Yes. Keil MDK has a free tier, so you can try it without paying. OpsLevel starts at On request.
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 OpsLevel is typically brought in for.
What can Keil MDK do that OpsLevel cannot?
OpsLevel covers Service catalogue, Scorecards and rubric, Checks, Campaigns.

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
OpsLevel: How much does OpsLevel cost?

It does not publish pricing. Billing is per developer using the portal, with volume discounts, and a quote requires a sales conversation.

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
OpsLevel: How does it compare with Backstage?

Backstage has no licence fee but you staff a team to build and run it. OpsLevel is hosted with checks, campaigns and scorecards out of the box, and you pay per developer instead.

OpsLevel: Does it require writing catalogue YAML by hand?

No. It auto-discovers and enriches entries from connected systems, though teams still curate ownership and metadata.

OpsLevel: Can it run on premises?

Yes, but only on the Enterprise plan.

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