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Software · head to head

Deno vs React

D

Deno

Software

A fast, open-source, fully Node-compatible JS runtime with TypeScript baked right in

From
Free
Rated
-
Full reviewWebsite
React logo

React

Software

A JavaScript library for building user interfaces

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Deno the runtime itself is MIT licensed per the project's GitHub repository (denoland/deno LICENSE.md) with no cost, but Deno Deploy's free tier caps at 1 million requests and 15 CPU hours per month, per deno.com/deploy/pricing (Aug 2026); React jSX requires a build step using Webpack, Babel, or other transpilers to convert to browser-executable JavaScript

Where they differ

Only the attributes on which Deno and React actually diverge.

Attributes where Deno and React differ
AttributeDenoReact
Pricing modelfreemiumfree
PlatformsWebWeb, Mobile
FoundedUnknown2013

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

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 Deno

Nothing recorded that React does not also cover.

Only in React

  • Component-based architecture
  • Virtual DOM
  • JSX syntax
  • Unidirectional data flow
  • React Hooks
  • Server-side rendering
  • Hot reloading
  • Developer tools

What people use each for

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

Deno

No use cases recorded yet. See the Deno review.

React

  • Web application developmentnot Deno
  • Single-page applicationsnot Deno
  • Interactive user interfacesnot Deno
  • Mobile app developmentnot Deno
  • Component librariesnot Deno

Where each one falls short

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

Deno

  • The runtime itself is MIT licensed per the project's GitHub repository (denoland/deno LICENSE.md) with no cost, but Deno Deploy's free tier caps at 1 million requests and 15 CPU hours per month, per deno.com/deploy/pricing (Aug 2026)
  • Deno Deploy Pro at $20 per month charges $2 per additional million requests and $0.05 per additional CPU hour once the included quota is exceeded, per deno.com/deploy/pricing

React

  • JSX requires a build step using Webpack, Babel, or other transpilers to convert to browser-executable JavaScript
  • Routing and state management are separate dependencies, not included in core library
  • Configuration complexity for advanced features like server-side rendering without a meta-framework
  • Requires choosing and configuring build tools and development environment setup

Pricing, plan by plan

Deno

Free

No published plan breakdown. See the Deno review.

React

Free
  • Open SourceFree
    • Component-based architecture
    • Virtual DOM
    • JSX syntax

Which should you pick?

Choose Deno if

  • You want to start without paying.
Deno review

Choose React if

  • You need component-based architecture.
  • You want to start without paying.
  • You work on Web, Mobile.
  • You also want virtual dom.
React review

Questions people ask

Is Deno or React better?
Neither clearly leads. Deno starts at Free and React at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Deno or React?
Deno starts at Free and React at Free.
Does Deno or React run on more platforms?
Deno runs on Web. React runs on Web, Mobile.
Can I use Deno for free?
Both have a free tier, so you can try either at no cost before committing.
What can Deno do that React cannot?
React covers Component-based architecture, Virtual DOM, JSX syntax, Unidirectional data flow.

Answered from the vendors’ own pages

React: Is React free to use commercially?

Yes. React is distributed under the MIT open-source license, which permits free usage for both personal and commercial projects without licensing fees or restrictions.

Source
React: Does React support TypeScript?

Yes. React works seamlessly with TypeScript for type-safe component development. TypeScript provides static type checking for React components, props, and state, improving code reliability and developer experience.

Source
React: Do I need a build step to use React?

If you use JSX, yes. JSX requires transpilation by a build tool like Webpack and Babel before browsers can execute it. However, React can be used without JSX by calling React.createElement directly, which does not require a build step.

Source
React: Can I build offline-capable applications with React?

Yes. React supports building Progressive Web Apps (PWAs) with service workers and IndexedDB for offline functionality. Create React App includes service worker setup, though it must be manually enabled for production use.

Source
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