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Developer Tools · head to head

Namespace vs RubyMine

Namespace logo

Namespace

Developer Tools

The dev platform for the next 100 billion commits

From
Free
Rated
-
Full reviewWebsite
RubyMine logo

RubyMine

Developer Tools

JetBrains IDE for Ruby and Ruby on Rails development

From
$24/month
Rated
-
Full reviewWebsite

The short version

  • Only Namespace has a free tier, so it costs nothing to try first.
  • Each has a real cost: Namespace developer plan is pay-as-you-go only; minimum usage unclear; RubyMine no permanently free tier for commercial use; requires an ongoing subscription.
  • They diverge on capability: Namespace covers Devboxes, RubyMine covers Rails-aware coding assistance.

Where they differ

Only the attributes on which Namespace and RubyMine actually diverge.

Attributes where Namespace and RubyMine differ
AttributeNamespaceRubyMine
Starting priceFree$24/month
Pricing modelUnknownsubscription
Free tierYesNo
PlatformsCloud, Mac, Windows, Linuxwindows, mac, linux
FoundedUnknown2000

Identical on both: 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 Namespace

  • Devboxes
  • GitHub Actions runners
  • Docker builds
  • Cross-invocation caching
  • NVMe storage
  • High-speed networking
  • Multiple OS support
  • Bazel and Turborepo support

Only in RubyMine

  • Rails-aware coding assistance
  • Integrated debugger
  • Test runner integration
  • Database tools
  • Version control integration
  • Docker support

What people use each for

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

Namespace

  • Providing AI coding agents with cloud-based development environmentsnot RubyMine
  • Accelerating CI builds with faster GitHub Actions runnersnot RubyMine
  • Distributing builds across teams with managed infrastructurenot RubyMine
  • Scaling development velocity for monorepo organizationsnot RubyMine

RubyMine

  • Building and maintaining Ruby on Rails applicationsnot Namespace
  • Debugging Ruby web applicationsnot Namespace
  • Running and managing RSpec or Minitest suitesnot Namespace
  • Working across Ruby, JavaScript, and SQL in one projectnot Namespace

Where each one falls short

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

Namespace

  • Developer plan is pay-as-you-go only; minimum usage unclear
  • Team plan $100/mo is competitive but usage limits may be tight
  • Devbox pricing separate at $0.004/minute could add up quickly
  • Enterprise plan requires custom sales conversation

RubyMine

  • No permanently free tier for commercial use; requires an ongoing subscription.
  • More resource-intensive than lightweight editors such as Sublime Text.
  • Focused primarily on Ruby, so polyglot teams may prefer IntelliJ IDEA Ultimate with plugins instead.
  • Startup time can be slower than simpler text editors on older hardware.

Pricing, plan by plan

Namespace

Free
  • DeveloperFree
    • Pay-as-you-go
    • On-demand compute
    • Docker builds
  • Team$100/month
    • 100,000 unit minutes
    • 1,000 Docker builds
    • Everything in Developer
  • Business$250/month
    • 250,000 unit minutes
    • 2,500 Docker builds
    • Everything in Team
  • Enterprise$undefined/custom
    • Custom compute/Docker build limits
    • Audit log export
    • Enterprise SSO

RubyMine

$24/month
  • Individual$24/month
    • Personal use license
    • Access to RubyMine
    • Free for students and open-source maintainers
  • Organization$34/month
    • Business use license
    • Access to RubyMine
    • Volume and renewal discounts

Which should you pick?

Choose Namespace if

  • You need devboxes.
  • You want to start without paying.
  • You work on Cloud, Mac, Windows, Linux.
  • You also want github actions runners.
Namespace review

Choose RubyMine if

  • You need rails-aware coding assistance.
  • You work on windows, mac, linux.
  • You also want integrated debugger.
RubyMine review

Questions people ask

Is Namespace or RubyMine better?
Neither clearly leads. Namespace starts at Free and RubyMine at $24/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Namespace or RubyMine?
Namespace has a free tier; the other does not. Paid plans start at Free for Namespace and $24/month for RubyMine.
Does Namespace or RubyMine run on more platforms?
Namespace runs on Cloud, Mac, Windows, Linux. RubyMine runs on windows, mac, linux.
Can I use Namespace for free?
Yes. Namespace has a free tier, so you can try it without paying. RubyMine starts at $24/month.
What is Namespace best used for?
Namespace is most often used for providing ai coding agents with cloud-based development environments, accelerating ci builds with faster github actions runners, distributing builds across teams with managed infrastructure, scaling development velocity for monorepo organizations. Of those, providing ai coding agents with cloud-based development environments and accelerating ci builds with faster github actions runners are not what RubyMine is typically brought in for.
What can Namespace do that RubyMine cannot?
Namespace covers Devboxes, GitHub Actions runners, Docker builds, Cross-invocation caching. RubyMine covers Rails-aware coding assistance, Integrated debugger, Test runner integration, Database tools.

Answered from the vendors’ own pages

Namespace: How is compute usage metered on the Developer plan?

Developer plan uses pay-as-you-go billing. Devboxes bill at $0.004 per minute. Storage and caching services have separate usage-based fees. A 30-day free trial is available to test usage patterns.

Source
RubyMine: How much does RubyMine cost?

RubyMine is sold as a JetBrains Toolbox subscription starting around $24/month for individuals and $34/month for organizations, with free licenses available for students and open-source maintainers.

Source
Namespace: What is the difference between Team and Business plans?

Team ($100/mo) includes 100,000 unit minutes and 1,000 Docker builds with email support. Business ($250/mo) includes 250,000 unit minutes, 2,500 Docker builds, and high concurrency with a dedicated Slack channel.

Source
RubyMine: Is there a free trial?

JetBrains provides a free trial period for RubyMine so developers can evaluate it before purchasing a subscription.

Source
Namespace: Can Namespace support AI coding agents?

Yes, Namespace Devboxes are specifically designed as feature-rich development environments for AI coding agents, with full tooling and performance optimization.

Source
RubyMine: What platforms does RubyMine support?

RubyMine runs as a desktop application on Windows, macOS, and Linux via JetBrains Toolbox.

Source
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