Comparison

Astro vs Preact

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.

Astro full profile →Preact full profile →

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Astro68

★Preact81

Attribute comparison across 2 tools
Attribute	Astro	PreactLeader
Vioscale score	68 / 100medium · 67%	81 / 100medium · 72%
Pricing
Free tierpricing.free_tier	✓	-
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	free	free
Integrations
Countintegrations.count	18	-
Security
Gdprsecurity.gdpr	✓	-
Scorecardsecurity.scorecard	-	5.7
Vulnerabilitiessecurity.vulnerabilities	Count: 25 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=astro&per_page=100 · Last 12m: 20 · Max severity: HIGH	Count: 2 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=preact&per_page=100 · Last 12m: 1 · Max severity: HIGH
Adoption
Dependent reposadoption.dependent_repos	18,705	78,992
Github starsadoption.github_stars	62,072	38,834
Package downloads weeklyadoption.package_downloads_weekly	4,952,430	31,234,030
Activity
Commits last 30dactivity.commits_last_30d	100	100
Release
Cadence daysrelease.cadence_days	-	13
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	MIT	MIT
Language
Primarylanguage.primary	TypeScript	JavaScript

Score

Vioscale score

Astro68 / 100medium · 67%

Preact81 / 100medium · 72%

Pricing

Free tier

Astro✓

Preact–

Model

Astrocommercial

Preactcommercial

Price level

Astrofree

Preactfree

Integrations

Count

Astro18

Preact–

Security

Gdpr

Astro✓

Preact–

Scorecard

Astro–

Preact5.7

Vulnerabilities

AstroCount: 25 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=astro&per_page=100 · Last 12m: 20 · Max severity: HIGH

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

Adoption

Dependent repos

Astro18,705

Preact78,992

Github stars

Astro62,072

Preact38,834

Package downloads weekly

Astro4,952,430

Preact31,234,030

Activity

Commits last 30d

Astro100

Preact100

Release

Cadence days

Astro–

Preact13

History

Astro20 items

Preact20 items

License

Spdx

AstroMIT

PreactMIT

Language

Primary

AstroTypeScript

PreactJavaScript

Capabilities

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

Capability comparison for Frontend UI Frameworks
Capability	Astro	Preact
Core
Paradigm	Server-first JavaScript framework	Virtual DOM component library
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)	Tiny (<10kb)

Core

Paradigm

AstroServer-first JavaScript framework

PreactVirtual DOM component library

Reusable component model

Astro✓

Preact✓

Rendering

Virtual DOM

Astro-

Preact✓

Signals / fine-grained reactivity

Astro-

Preact-

SSR support

Astro✓

Preact✓

First-class TypeScript

Astro✓

Preact-

State

Built-in state management

Astro-

Preact✓

Ecosystem

Official router

Astro-

Preact-

Performance

Runtime size

AstroTiny (<10kb)

PreactTiny (<10kb)

What each one is

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

Astro

A web framework that renders pages on the server and sends minimal JavaScript to browsers, designed for high-performance marketing sites, blogs, and e-commerce platforms.

Independently observed

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

Pricing

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

Astro

Open source

as of 2026-08-13verify ↗

Preact

Leader

Open source

as of 2026-08-13verify ↗

Platform & deployment

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

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

Platforms

Web

Astro✓

Preact✓

CLI

Astro✓

Preact✗

Deployment

Cloud / SaaS

Astro✓

Preact–

Self-hosted

Astro✓

Preact–

Integrations

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

Astro

18 total

React
Vue
Svelte
Tailwind CSS
Vercel
Cloudflare Workers
Node.js
Prism
MDX
Sitemap
Starlight
Sentry
UnoCSS
Expressive Code
astro-icon
astro-seo
Fathom Analytics
Feedback Fish

Independently observed

Preact

Leader

Not documented yet.

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