Comparison

Preact vs shadcn/ui

On the evidence we track, Preact leads this comparison with a composite score of 81/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Preact full profile →shadcn/ui full profile →

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★Preact81

shadcn/ui62

Attribute comparison across 2 tools
Attribute	PreactLeader	shadcn/ui
Vioscale score	81 / 100medium · 72%	62 / 100medium · 51%
Pricing
Free tierpricing.free_tier	-	✓
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	free	free
Transparentpricing.transparent	-	✓
Integrations
Countintegrations.count	-	6
Security
Disclosure policysecurity.disclosure_policy	-	✓
Scorecardsecurity.scorecard	5.7	-
Vulnerabilitiessecurity.vulnerabilities	Count: 2 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=preact&per_page=100 · Last 12m: 1 · Max severity: HIGH	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=hghcn&per_page=100 · Last 12m: 0
Adoption
Dependent reposadoption.dependent_repos	78,992	0
Github starsadoption.github_stars	38,834	122,199
Package downloads weeklyadoption.package_downloads_weekly	31,234,030	-
Activity
Commits last 30dactivity.commits_last_30d	100	87
Release
Cadence daysrelease.cadence_days	13	3
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	MIT	MIT
Language
Primarylanguage.primary	JavaScript	TypeScript
Market
Availabilitymarket.availability	-	Available worldwide

Score

Vioscale score

Preact81 / 100medium · 72%

shadcn/ui62 / 100medium · 51%

Pricing

Free tier

Preact–

shadcn/ui✓

Model

Preactcommercial

shadcn/uicommercial

Price level

Preactfree

shadcn/uifree

Transparent

Preact–

shadcn/ui✓

Integrations

Count

Preact–

shadcn/ui6

Security

Disclosure policy

Preact–

shadcn/ui✓

Scorecard

Preact5.7

shadcn/ui–

Vulnerabilities

PreactCount: 2 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=preact&per_page=100 · Last 12m: 1 · Max severity: HIGH

shadcn/uiCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=hghcn&per_page=100 · Last 12m: 0

Adoption

Dependent repos

Preact78,992

shadcn/ui0

Github stars

Preact38,834

shadcn/ui122,199

Package downloads weekly

Preact31,234,030

shadcn/ui–

Activity

Commits last 30d

Preact100

shadcn/ui87

Release

Cadence days

Preact13

shadcn/ui3

History

Preact20 items

shadcn/ui20 items

License

Spdx

PreactMIT

shadcn/uiMIT

Language

Primary

PreactJavaScript

shadcn/uiTypeScript

Market

Availability

Preact–

shadcn/uiAvailable worldwide

Capabilities

Feature-by-feature on the axes that matter for frontend ui frameworks. “-” means undocumented, not absent.

Capability comparison for Frontend UI Frameworks
Capability	Preact	shadcn/ui
Core
Paradigm	Virtual DOM component library	Component library and design system toolkit
Reusable component model	✓	✓
Rendering
Virtual DOM	✓	✓
Signals / fine-grained reactivity	-	✗
SSR support	✓	✓
DX
First-class TypeScript	-	✓
State
Built-in state management	✓	✓
Ecosystem
Official router	-	✗
Performance
Runtime size	Tiny (<10kb)	Small (10–40kb)

Core

Paradigm

PreactVirtual DOM component library

shadcn/uiComponent library and design system toolkit

Reusable component model

Preact✓

shadcn/ui✓

Rendering

Virtual DOM

Preact✓

shadcn/ui✓

Signals / fine-grained reactivity

Preact-

shadcn/ui✗

SSR support

Preact✓

shadcn/ui✓

First-class TypeScript

Preact-

shadcn/ui✓

State

Built-in state management

Preact✓

shadcn/ui✓

Ecosystem

Official router

Preact-

shadcn/ui✗

Performance

Runtime size

PreactTiny (<10kb)

shadcn/uiSmall (10–40kb)

What each one is

The product in its own terms, so the numbers below have context.

Preact

Leader

A minimal virtual DOM library that provides a React-compatible API with significantly reduced file size. Preact delivers performance-focused component development without the overhead of traditional frameworks.

Independently observed

shadcn/ui

An open-source React component library that provides ready-made UI components built on Radix UI and styled with Tailwind CSS. You copy components directly into your codebase and customize them to match your design requirements.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Preact

Leader

Open source

as of 2026-08-13verify ↗

shadcn/ui

Open sourceFree tier

as of 2026-08-14verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	Preact	shadcn/ui
WebPlatforms	✓	✓
CLIPlatforms	✗	✓
Cloud / SaaSDeployment	-	✓
Self-hostedDeployment	-	✓

Platforms

Web

Preact✓

shadcn/ui✓

CLI

Preact✗

shadcn/ui✓

Deployment

Cloud / SaaS

Preact–

shadcn/ui✓

Self-hosted

Preact–

shadcn/ui✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Preact

Leader

Not documented yet.

shadcn/ui

6 total

Radix UI
React
React Aria
Tailwind CSS
Next.js
Vite

Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.