Developer Tools · head to head
Blacksmith vs Ruby on Rails

Blacksmith
Developer Tools
2x faster GitHub Actions with 60% cost savings
- From
- Free
- Free plan
- Yes

Ruby on Rails
Web Development
A full-stack framework for building web applications
- From
- Free
- Free plan
- Yes
The short version
- Each has a real cost: Blacksmith per-minute pricing model requires estimating usage to predict costs; Ruby on Rails licensed under the MIT License per rubyonrails.org; as open source software it has no paid tier or vendor price to compare
- Prices and features above were last checked on 29 August 2026.
Where they differ
Only the attributes on which Blacksmith and Ruby on Rails actually diverge.
| Attribute | Blacksmith | Ruby on Rails |
|---|---|---|
| Pricing model | Unknown | open-source |
| Platforms | GitHub Actions, Linux, Windows, macOS | Web |
| Category | Developer Tools | Web 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 Ruby on Rails
Nothing recorded that Blacksmith does not also cover.
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 Ruby on Rails
- Accelerating CI build times for organizations with heavy CI loadnot Ruby on Rails
- Reducing cloud spend on GitHub Actions by 60% or morenot Ruby on Rails
- Supporting ARM architecture builds without GitHub runnersnot Ruby on Rails
Ruby on Rails
- Building e-commerce platforms that scale from startup to IPOnot Blacksmith
- Developing SaaS applications with consistent conventions across teamsnot Blacksmith
- Creating marketplace platforms like Airbnb with transactional workflowsnot Blacksmith
- Integrating cloud file storage and real-time WebSocket updatesnot Blacksmith
- Enforcing encryption and security protections against common attacksnot 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
Ruby on Rails
- Licensed under the MIT License per rubyonrails.org; as open source software it has no paid tier or vendor price to compare
- The framework is Ruby-only by design, per rubyonrails.org's own description of its convention over configuration approach, requiring the Ruby runtime rather than supporting alternate languages
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
Ruby on Rails
FreeNo published plan breakdown. See the Ruby on Rails review.
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.
Questions people ask
- Is Blacksmith or Ruby on Rails better?
- Neither clearly leads. Blacksmith starts at Free and Ruby on Rails at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Blacksmith or Ruby on Rails?
- Blacksmith starts at Free and Ruby on Rails at Free.
- Does Blacksmith or Ruby on Rails run on more platforms?
- Blacksmith runs on GitHub Actions, Linux, Windows, macOS. Ruby on Rails runs on Web.
- 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 Ruby on Rails is typically brought in for.
- What can Blacksmith do that Ruby on Rails cannot?
- Blacksmith covers Bare metal runners, Multiple OS support, ARM support, Docker layer caching.
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.
SourceRuby on Rails: Is Ruby on Rails free?
Yes, Ruby on Rails is free and open-source, licensed under the MIT License. There are no costs associated with using or distributing the framework.
SourceBlacksmith: 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.
SourceRuby on Rails: What is Ruby on Rails licensed under?
Ruby on Rails is licensed under the MIT License, a permissive open-source license that allows commercial and private use.
SourceBlacksmith: 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.
SourceRelated pages
More on Ruby on Rails
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- Ruby on Rails vs WarpBuild
- Ruby on Rails vs Depot
- Ruby on Rails vs Namespace
- Ruby on Rails vs Earthly
- Ruby on Rails vs Nx Cloud
- Ruby on Rails vs OpsLevel
- Ruby on Rails vs Garden
- Ruby on Rails vs ConfigCat
- Ruby on Rails vs Dagger
- Ruby on Rails vs Nix
- Ruby on Rails vs Rust
- Ruby on Rails vs Ansible
- Ruby on Rails vs PartyKit
- Ruby on Rails vs PhpStorm
- Ruby on Rails vs Pieces for Developers
- Ruby on Rails vs RAD Studio
- Ruby on Rails vs Refact
- Ruby on Rails vs MySQL
- Ruby on Rails vs Flask
- Ruby on Rails vs Next.js
- Ruby on Rails vs Django
- Ruby on Rails vs Remix
- Ruby on Rails vs Bolt.new
- Ruby on Rails vs FastAPI
- Ruby on Rails vs Angular
- Ruby on Rails vs SolidStart
- Ruby on Rails vs TanStack Start
- Ruby on Rails vs NestJS
- Ruby on Rails vs Nuxt
- Ruby on Rails vs Sass
- Ruby on Rails vs SolidJS
- Ruby on Rails vs Spring Boot
- Ruby on Rails vs Strikingly
- Ruby on Rails vs Svelte
- Ruby on Rails vs Turbopack
