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Developer Tools · head to head

Blacksmith vs Turbopack

Blacksmith logo

Blacksmith

Developer Tools

2x faster GitHub Actions with 60% cost savings

From
Free
Free plan
Yes
Full reviewWebsite
Turbopack logo

Turbopack

Web Development

Incremental bundler for JavaScript written in Rust

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; Turbopack effectively coupled to Next.js; using it standalone is not the supported path
  • They diverge on capability: Blacksmith covers Bare metal runners, Turbopack covers Incremental computation.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Blacksmith and Turbopack actually diverge.

Attributes where Blacksmith and Turbopack differ
AttributeBlacksmithTurbopack
Pricing modelUnknownOpen source, no licence fee
PlatformsGitHub Actions, Linux, Windows, macOSLinux, macOS, Windows
CategoryDeveloper ToolsWeb Development

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 Turbopack

  • Incremental computation
  • Written in Rust
  • Next.js integration
  • Fast refresh

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

Turbopack

  • Large Next.js applications where rebuild time is the daily costnot Blacksmith
  • Teams already on Vercel’s stack wanting faster local feedbacknot Blacksmith
  • Migrating off webpack within Next.js without changing frameworksnot 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

Turbopack

  • Effectively coupled to Next.js; using it standalone is not the supported path
  • Younger than the alternatives, and ecosystem plugin support is narrower than webpack’s
  • Benchmark claims have been contested publicly, so measure on your own project rather than trusting headline numbers
  • Being Vercel-driven ties its roadmap to one company’s framework priorities

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

Turbopack

Free
  • TurbopackFree
    • Full functionality
    • Commercial use permitted
    • Community support

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 Turbopack if

  • You need incremental computation.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want written in rust.
Turbopack review

Questions people ask

Is Blacksmith or Turbopack better?
Neither clearly leads. Blacksmith starts at Free and Turbopack at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Blacksmith or Turbopack?
Blacksmith starts at Free and Turbopack at Free.
Does Blacksmith or Turbopack run on more platforms?
Blacksmith runs on GitHub Actions, Linux, Windows, macOS. Turbopack runs on Linux, macOS, Windows.
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 Turbopack is typically brought in for.
What can Blacksmith do that Turbopack cannot?
Blacksmith covers Bare metal runners, Multiple OS support, ARM support, Docker layer caching. Turbopack covers Incremental computation, Written in Rust, Next.js integration, Fast refresh.

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
Turbopack: Is Turbopack free?

Yes, open source from Vercel.

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
Turbopack: Can I use Turbopack without Next.js?

Not really. It is developed as the Next.js bundler, and standalone use is not the supported path.

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
Turbopack: Is Turbopack faster than Vite?

It depends on the project, and published comparisons have been disputed by both sides. Measure on your own codebase rather than relying on headline figures.

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