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Developer Tools · head to head

Blacksmith vs Microsoft Azure

Blacksmith logo

Blacksmith

Developer Tools

2x faster GitHub Actions with 60% cost savings

From
Free
Free plan
Yes
Full reviewWebsite
Microsoft Azure logo

Microsoft Azure

Cloud

Open and flexible cloud services

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Blacksmith per-minute pricing model requires estimating usage to predict costs; Microsoft Azure the 12 months of free services is available only to new customers who have not previously had an Azure account or received 12 months of free services
  • They diverge on capability: Blacksmith covers Bare metal runners, Microsoft Azure covers Virtual Machines.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Blacksmith and Microsoft Azure actually diverge.

Attributes where Blacksmith and Microsoft Azure differ
AttributeBlacksmithMicrosoft Azure
Pricing modelUnknownusage-based
PlatformsGitHub Actions, Linux, Windows, macOSWeb, Api, Desktop, Mobile
CategoryDeveloper ToolsCloud
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 Blacksmith

  • Bare metal runners
  • Multiple OS support
  • ARM support
  • Docker layer caching
  • Sticky disks
  • GitHub Actions observability
  • Free tier
  • Static IPs

Only in Microsoft Azure

  • Virtual Machines
  • App Service
  • SQL Database
  • Blob Storage
  • Azure Cosmos DB
  • Functions
  • Service Fabric
  • API Management

What people use each for

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

Blacksmith

  • Replacing GitHub Actions runners with faster, cheaper infrastructurenot Microsoft Azure
  • Accelerating CI build times for organizations with heavy CI loadnot Microsoft Azure
  • Reducing cloud spend on GitHub Actions by 60% or morenot Microsoft Azure
  • Supporting ARM architecture builds without GitHub runnersnot Microsoft Azure

Microsoft Azure

  • Cloud infrastructure and computingnot Blacksmith
  • Database and storage servicesnot Blacksmith
  • AI and machine learning servicesnot Blacksmith
  • Enterprise application hostingnot Blacksmith

Where each one falls short

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

Blacksmith

  • Per-minute pricing model requires estimating usage to predict costs
  • macOS M4 pricing ($0.08/min) is significantly higher than GitHub Actions
  • Docker layer caching and sticky disks are paid add-ons at $0.50/GB/mo
  • Static IP add-on costs $100/IP/mo

Microsoft Azure

  • The 12 months of free services is available only to new customers who have not previously had an Azure account or received 12 months of free services
  • The 12 months free offer is not available to customers who sign up directly for pay as you go in China and India
  • Customers who try Azure free must move to pay as you go within 30 days to keep receiving the 12 months of free services
  • Free services are capped at specified monthly amounts, and only some of them are always free

Pricing, plan by plan

Blacksmith

Free
  • Ubuntu x64$0.004/minute
    • 3,000 free minutes per month
    • 2x faster hardware
    • 4x faster cache downloads
  • Ubuntu ARM$0.0025/minute
    • 3,000 free minutes per month
    • 2x faster hardware
    • 4x faster cache downloads
  • Windows x64$0.008/minute
    • 3,000 free minutes per month
    • 2x faster hardware
    • 4x faster cache downloads
  • macOS M4$0.08/minute
    • 3,000 free minutes per month
    • 2x faster hardware
    • 4x faster cache downloads

Microsoft Azure

Free
  • Free AccountFree
    • $200 credit for 30 days
    • Popular services 12 months free
    • 40+ services always free

Which should you pick?

Choose Blacksmith if

  • You need bare metal runners.
  • You want to start without paying.
  • You work on GitHub Actions, Linux, Windows, macOS.
  • You also want multiple os support.
Blacksmith review

Choose Microsoft Azure if

  • You need virtual machines.
  • You want to start without paying.
  • You work on Web, Api, Desktop, Mobile.
  • You also want app service.
Microsoft Azure review

Questions people ask

Is Blacksmith or Microsoft Azure better?
Neither clearly leads. Blacksmith starts at Free and Microsoft Azure at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Blacksmith or Microsoft Azure?
Blacksmith starts at Free and Microsoft Azure at Free.
Does Blacksmith or Microsoft Azure run on more platforms?
Blacksmith runs on GitHub Actions, Linux, Windows, macOS. Microsoft Azure runs on Web, Api, Desktop, Mobile.
Can I use Blacksmith for free?
Both have a free tier, so you can try either at no cost before committing.
What is Blacksmith best used for?
Blacksmith is most often used for replacing github actions runners with faster, cheaper infrastructure, accelerating ci build times for organizations with heavy ci load, reducing cloud spend on github actions by 60% or more, supporting arm architecture builds without github runners. Of those, replacing github actions runners with faster, cheaper infrastructure and accelerating ci build times for organizations with heavy ci load are not what Microsoft Azure is typically brought in for.
What can Blacksmith do that Microsoft Azure cannot?
Blacksmith covers Bare metal runners, Multiple OS support, ARM support, Docker layer caching. Microsoft Azure covers Virtual Machines, App Service, SQL Database, Blob Storage.

Answered from the vendors’ own pages

Blacksmith: How much do Blacksmith runners cost compared to GitHub Actions?

Blacksmith offers 60-75% cost savings depending on OS. Ubuntu x64 costs $0.004/min vs GitHub at $0.012/min. All plans include 3,000 free minutes monthly.

Source
Microsoft Azure: How much does Microsoft Azure cost?

Azure uses consumption-based pricing where you pay only for resources used and scale as you grow, with no fixed monthly fee. Prices are listed in USD globally, and pricing varies by service, region, and usage patterns.

Source
Blacksmith: Can I use Docker layer caching with Blacksmith?

Yes, Docker layer caching is available as an add-on at $0.50/GB/mo. Managed Docker layer persistence is included with the base service.

Source
Microsoft Azure: How can I save money on Azure services?

Azure offers savings up to 65% on select compute services through Azure Savings Plans with one- or three-year commitments. Using Azure Hybrid Benefit with existing Windows Server and SQL Server licenses plus reservations can save up to 85% compared to standard rates.

Source
Blacksmith: What is the SLA for Enterprise plans?

Enterprise Blacksmith plans include a 99.9% SLA guarantee along with 24/7 priority support, dedicated Slack channels, white-glove onboarding, and CI optimization support.

Source
Microsoft Azure: Does Azure offer a free tier?

Azure provides free tier services for new users and perpetually free options, including free Spot Virtual Machines, dev/test pricing for development workloads, and access to the Azure Pricing Calculator to estimate monthly costs before deployment.

Source
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