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Developer Tools · head to head

Blacksmith vs Socket

Blacksmith logo

Blacksmith

Developer Tools

2x faster GitHub Actions with 60% cost savings

From
Free
Rated
-
Full reviewWebsite
Socket logo

Socket

Cybersecurity

Supply chain security platform detecting and blocking malicious dependencies

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Blacksmith per-minute pricing model requires estimating usage to predict costs; Socket team plan requires minimum 5-developer commitment, expensive for small teams
  • They diverge on capability: Blacksmith covers Bare metal runners, Socket covers Malware detection.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Blacksmith and Socket actually diverge.

Attributes where Blacksmith and Socket differ
AttributeBlacksmithSocket
Pricing modelUnknownPer-developer monthly subscription with tiered access
PlatformsGitHub Actions, Linux, Windows, macOSWeb, CLI, GitHub
CategoryDeveloper ToolsCybersecurity
FoundedUnknown2021

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 Socket

  • Malware detection
  • Automatic blocking
  • AI behavior analysis
  • Reachability analysis
  • Slack integration
  • SBOM support
  • SAML SSO
  • GitHub Actions scanning

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 Socket
  • Accelerating CI build times for organizations with heavy CI loadnot Socket
  • Reducing cloud spend on GitHub Actions by 60% or morenot Socket
  • Supporting ARM architecture builds without GitHub runnersnot Socket

Socket

  • Blocking zero-day malware attacks in JavaScript dependenciesnot Blacksmith
  • Managing CVE false positives with precomputed reachability analysisnot Blacksmith
  • Securing Python and Go supply chains at scalenot Blacksmith
  • Automating compliance requirements for regulated industriesnot Blacksmith
  • Real-time threat notifications via Slack integrationnot 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

Socket

  • Team plan requires minimum 5-developer commitment, expensive for small teams
  • Business plan $50/dev/month becomes costly for teams exceeding 20 members
  • Enterprise pricing requires custom consultation with no transparent pricing
  • Free plan limited to individual developers without team collaboration
  • Reachability analysis improvement (90% false positive reduction) only on Enterprise

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

Socket

Free
  • FreeFree
    • For individual developers
    • Detects 70+ risk types
    • Blocks malicious dependencies automatically
  • Team$25/month
    • Per developer on minimum 5 developers
    • Precomputed reachability analysis cuts 60% false positives
    • Slack alerts for threats
  • Business$50/month
    • Per developer on minimum 20 developers
    • All Team features
    • Compliance integrations with Vanta
  • Enterprise$undefined/custom
    • Function-level reachability eliminates up to 90% irrelevant CVEs
    • Multi-repository system support
    • Named account manager

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 Socket if

  • You need malware detection.
  • You want to start without paying.
  • You work on Web, CLI, GitHub.
  • You also want automatic blocking.
Socket review

Questions people ask

Is Blacksmith or Socket better?
Neither clearly leads. Blacksmith starts at Free and Socket at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Blacksmith or Socket?
Blacksmith starts at Free and Socket at Free.
Does Blacksmith or Socket run on more platforms?
Blacksmith runs on GitHub Actions, Linux, Windows, macOS. Socket runs on Web, CLI, GitHub.
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 Socket is typically brought in for.
What can Blacksmith do that Socket cannot?
Blacksmith covers Bare metal runners, Multiple OS support, ARM support, Docker layer caching. Socket covers Malware detection, Automatic blocking, AI behavior analysis, Reachability analysis.

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
Socket: How many zero-day attacks does Socket detect?

Socket detects over 100 zero-day attacks weekly across JavaScript, Python, and Go ecosystems.

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
Socket: What is precomputed reachability analysis?

Socket's precomputed reachability analysis cuts CVE false positives by 60% automatically on Team plans, and up to 90% on Enterprise plans through function-level analysis.

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
Socket: Is there a discount for annual billing?

Yes. Socket offers a 20% discount for annual commitments across all subscription tiers.

Source
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