Softwr

Developer Tools · head to head

Namespace vs Radix UI

Namespace logo

Namespace

Developer Tools

The dev platform for the next 100 billion commits

From
Free
Free plan
Yes
Radix UI logo

Radix UI

Web Development

Unstyled, accessible React component primitives

From
Free
Free plan
Yes

The short version

  • Each has a real cost: Namespace developer plan is pay-as-you-go only; minimum usage unclear; Radix UI you write all the styling, so time to a finished interface is much longer than with a styled library
  • They diverge on capability: Namespace covers Devboxes, Radix UI covers Unstyled primitives.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Namespace and Radix UI actually diverge.

Attributes where Namespace and Radix UI differ
AttributeNamespaceRadix UI
Pricing modelUnknownOpen source, no licence fee
PlatformsCloud, Mac, Windows, LinuxWeb
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 Namespace

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

Only in Radix UI

  • Unstyled primitives
  • Accessibility built in
  • Composable API
  • Controlled or uncontrolled

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 Radix UI
  • Accelerating CI builds with faster GitHub Actions runnersnot Radix UI
  • Distributing builds across teams with managed infrastructurenot Radix UI
  • Scaling development velocity for monorepo organizationsnot Radix UI

Radix UI

  • Design systems that need correct accessibility without inherited visual opinionsnot Namespace
  • Replacing hand-built dropdowns and dialogs that have accessibility bugsnot Namespace
  • Teams with a designer whose output should not be constrained by a library’s themenot 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

Radix UI

  • You write all the styling, so time to a finished interface is much longer than with a styled library
  • Composable part-based APIs are more verbose than a single component with props
  • Covers primitives rather than complex widgets, so data grids and date pickers come from elsewhere

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

Radix UI

Free
  • Radix UIFree
    • Full functionality
    • Commercial use permitted
    • Community support

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.

Choose Radix UI if

  • You need unstyled primitives.
  • You want to start without paying.
  • You also want accessibility built in.

Questions people ask

Is Namespace or Radix UI better?
Neither clearly leads. Namespace starts at Free and Radix UI at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Namespace or Radix UI?
Namespace starts at Free and Radix UI at Free.
Does Namespace or Radix UI run on more platforms?
Namespace runs on Cloud, Mac, Windows, Linux. Radix UI runs on Web.
Can I use Namespace for free?
Both have a free tier, so you can try either at no cost before committing.
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 Radix UI is typically brought in for.
What can Namespace do that Radix UI cannot?
Namespace covers Devboxes, GitHub Actions runners, Docker builds, Cross-invocation caching. Radix UI covers Unstyled primitives, Accessibility built in, Composable API, Controlled or uncontrolled.

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
Radix UI: Is Radix UI free?

Yes, open source under the MIT licence.

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
Radix UI: Why use unstyled components?

Because accessibility is the hard part and visual design is the part teams want to own. Radix gives the first and stays out of the second.

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
Radix UI: What is the relationship with shadcn/ui?

shadcn/ui is built on Radix primitives, adding Tailwind styling and copy-paste distribution on top.

Share

Related pages

Other head to heads