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Developer Tools · head to head

Restate vs shadcn/ui

Restate logo

Restate

Developer Tools

Durable execution engine in Rust with a free tier and low-latency workflows

From
Free
Free plan
Yes
Full reviewWebsite
shadcn/ui logo

shadcn/ui

Web Development

Copy-paste React components you own, not a dependency

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Restate the runtime is under a Business Source Licence rather than an open source licence, so building a competing managed offering on it is prohibited and some procurement functions will reject it on licence grounds alone.; shadcn/ui no upgrade path: once copied, upstream fixes and improvements are yours to port by hand
  • They diverge on capability: Restate covers Durable execution, shadcn/ui covers Copy, not install.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Restate and shadcn/ui actually diverge.

Attributes where Restate and shadcn/ui differ
AttributeRestateshadcn/ui
Pricing modelPer month by durable action countOpen source, no licence fee
PlatformsLinux, macOS, WebWeb
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 Restate

  • Durable execution
  • Virtual objects
  • Single binary runtime
  • Multi-language SDKs
  • Workflows and sagas
  • Restate Cloud

Only in shadcn/ui

  • Copy, not install
  • Radix primitives
  • Tailwind styling
  • Themeable

What people use each for

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

Restate

  • Payment or order flows where a crash between two external API calls must not double-charge or lose the ordernot shadcn/ui
  • AI agent loops that call tools over minutes or hours and must survive a deployment mid-runnot shadcn/ui
  • Replacing hand-rolled retry, idempotency key and outbox code across a set of microservicesnot shadcn/ui
  • A small team that wants durable workflows without operating a Temporal cluster and its databasenot shadcn/ui

shadcn/ui

  • Projects already using Tailwind that need accessible components without a theming fightnot Restate
  • Design systems that will diverge from any library’s defaults anywaynot Restate
  • Teams who have been burned by breaking changes in component library upgradesnot Restate

Where each one falls short

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

Restate

  • The runtime is under a Business Source Licence rather than an open source licence, so building a competing managed offering on it is prohibited and some procurement functions will reject it on licence grounds alone.
  • Restate Cloud jumps from a free fifty thousand actions straight to 300 US dollars a month for twenty million, so a workload sitting at a few hundred thousand actions pays enterprise-shaped money for hobby-shaped volume.
  • It is a young project against Temporal’s established base, so hiring engineers who already know it is unrealistic and the answer to most questions is in the docs rather than on Stack Overflow.
  • The programming model requires structuring code around durable handlers and virtual objects, which is a genuine rewrite for existing services rather than a library you add.
  • The single-binary simplicity that makes small deployments cheap also means fewer operational knobs at very large scale than a system designed as separable components.

shadcn/ui

  • No upgrade path: once copied, upstream fixes and improvements are yours to port by hand
  • Requires Tailwind and React, so it is not an option outside that stack
  • Component code lives in your repository, which grows it and puts maintenance on your team
  • Its popularity has made the default look recognisable, which undercuts the customisation argument

Pricing, plan by plan

Restate

Free
  • FreeFree
    • Fifty thousand durable actions per month
    • No credit card required
    • Community support
  • Starter$300/month
    • Twenty million actions per month
    • Two hundred actions per second, bursting to one thousand
    • Twenty GB storage
  • Pro$1000/month
    • Fifty million actions per month
    • Five hundred actions per second, bursting to two thousand
    • Fifty GB storage
  • Enterprise$undefined/year
    • Negotiated volume
    • Twenty-four seven P0 support
    • 99.99 per cent SLA

shadcn/ui

Free
  • shadcn/uiFree
    • Full functionality
    • Commercial use permitted
    • Community support

Which should you pick?

Choose Restate if

  • You need durable execution.
  • You want to start without paying.
  • You work on Linux, macOS, Web.
  • You also want virtual objects.
Restate review

Choose shadcn/ui if

  • You need copy, not install.
  • You want to start without paying.
  • You also want radix primitives.
shadcn/ui review

Questions people ask

Is Restate or shadcn/ui better?
Neither clearly leads. Restate starts at Free and shadcn/ui at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Restate or shadcn/ui?
Restate starts at Free and shadcn/ui at Free.
Does Restate or shadcn/ui run on more platforms?
Restate runs on Linux, macOS, Web. shadcn/ui runs on Web.
Can I use Restate for free?
Both have a free tier, so you can try either at no cost before committing.
What is Restate best used for?
Restate is most often used for payment or order flows where a crash between two external api calls must not double-charge or lose the order, ai agent loops that call tools over minutes or hours and must survive a deployment mid-run, replacing hand-rolled retry, idempotency key and outbox code across a set of microservices, a small team that wants durable workflows without operating a temporal cluster and its database. Of those, payment or order flows where a crash between two external api calls must not double-charge or lose the order and ai agent loops that call tools over minutes or hours and must survive a deployment mid-run are not what shadcn/ui is typically brought in for.
What can Restate do that shadcn/ui cannot?
Restate covers Durable execution, Virtual objects, Single binary runtime, Multi-language SDKs. shadcn/ui covers Copy, not install, Radix primitives, Tailwind styling, Themeable.

Answered from the vendors’ own pages

Restate: Is Restate open source?

The SDKs are MIT. The runtime is under a Business Source Licence, which permits self-hosting but not offering it as a competing service.

shadcn/ui: Is shadcn/ui free?

Yes, open source and free for commercial use.

Restate: How does it compare with Temporal?

Same problem, different shape: one Rust binary with embedded storage instead of a server plus database plus workers, and lower per-step latency.

shadcn/ui: Why is it not an npm package?

So you own the code. Components are copied into your project, which makes customisation trivial — at the cost of receiving no automatic updates.

Restate: Is there a free tier?

Yes, fifty thousand durable actions a month on Restate Cloud with no card required.

shadcn/ui: Do I need Tailwind?

Yes. Components are styled with Tailwind utility classes and built on Radix primitives, so both are required.

Restate: Which languages are supported?

TypeScript, Java, Kotlin, Go, Python and Rust.

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