# Astro vs Preact

**Leader by vioscaleAI score:** Preact

| Attribute | Astro | Preact |
|---|---|---|
| **vioscaleAI score** | 71.9 (57% (medium)) | 77.9 (72% (medium)) |
| activity.commits_last_30d | 100 | 70 |
| adoption.dependent_repos | 18,705 | 78,992 |
| adoption.github_stars | 63,201 | 38,926 |
| adoption.package_downloads_weekly | 7,314,180 | 38,692,983 |
| content.faq | `[{"answer":"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. It is indexed under Frontend UI Frameworks.","source":"https://astro.build/","question":"What is Astro?","confidence":0.6},{"answer":"Astro is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"https://astro.build/","question":"Is Astro free to use?","confidence":0.6},{"answer":"Astro supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://astro.build/","question":"What platforms does Astro support?","confidence":0.6},{"answer":"Yes. Astro can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://astro.build/","question":"Can Astro be self-hosted?","confidence":0.6},{"answer":"We have confirmed 18 integrations for Astro, including React, Vue, Svelte, Tailwind CSS, Vercel, Cloudflare Workers, Node.js and Prism, plus 10 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://astro.build/","question":"What does Astro integrate with?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Astro. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Astro not holding them. Always confirm compliance directly before you rely on it.","source":"https://astro.build/privacy/","question":"What security certifications does Astro have?","confidence":0.7},{"answer":"Yes. Astro is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://www.npmjs.com/package/astro","question":"Is Astro open source?","confidence":0.85}]` | `[{"answer":"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. It is indexed under Frontend UI Frameworks.","source":"https://preactjs.com/","question":"What is Preact?","confidence":0.6},{"answer":"Preact is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"https://preactjs.com/","question":"Is Preact free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to Preact. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://preactjs.com/","question":"What platforms does Preact support?","confidence":0.6},{"answer":"Yes. Preact is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/preactjs/preact","question":"Is Preact open source?","confidence":0.99}]` |
| deployment.options | `{"cloud":true}` | - |
| description.long | Astro is a web framework that prioritizes performance through server-side rendering and sends minimal JavaScript to browsers. It features an island architecture for selective interactivity, supports all major UI frameworks, and produces zero unnecessary JavaScript by default. | A minimal virtual DOM framework providing React-style components and APIs, optimized for tiny bundle size and fast performance across modern browsers. |
| features.capabilities | `{"runtime":"node","paradigm":"Server-first JavaScript framework","build_model":"static_with_islands","bundle_size":"tiny","ssr_support":true,"component_model":true,"docs_specialised":true,"typescript_first":true,"image_optimization":true,"incremental_builds":true,"zero_js_by_default":true,"mdx_component_embeds":true,"plugin_ecosystem_size":"large","islands_partial_hydration":true}` | `{"paradigm":"Virtual DOM component library","bundle_size":"tiny","ssr_support":true,"virtual_dom":true,"component_model":true,"router_official":true,"state_management":true}` |
| integrations.count | 18 | - |
| integrations.list | `[{"name":"React"},{"name":"Vue"},{"name":"Svelte"},{"name":"Tailwind CSS"},{"name":"Vercel"},{"name":"Cloudflare Workers"},{"name":"Node.js"},{"name":"Prism"},{"name":"MDX"},{"name":"Sitemap"},{"name":"Starlight"},{"name":"Sentry"},{"name":"UnoCSS"},{"name":"Expressive Code"},{"name":"astro-icon"},{"name":"astro-seo"},{"name":"Fathom Analytics"},{"name":"Feedback Fish"},{"name":"Cloudflare","native":true},{"name":"Sonda","native":false},{"name":"Solid","native":true,"category":"ui_framework","direction":"inbound"}]` | - |
| language.primary | TypeScript | JavaScript |
| license.spdx | MIT | MIT |
| platform.support | `{"web":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://astro.build/","retrievedAt":"2026-10-13T13:53:21.533Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://preactjs.com/","retrievedAt":"2026-10-13T13:50:36.035Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| release.cadence_days | - | 13 |
| release.history | `[{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/vercel%4011.0.14","date":"2026-10-12T11:54:36Z","type":"stable","version":"@astrojs/vercel@11.0.14"},{"url":"https://github.com/withastro/astro/releases/tag/create-astro%405.2.6","date":"2026-10-08T15:38:41Z","type":"stable","version":"create-astro@5.2.6"},{"url":"https://github.com/withastro/astro/releases/tag/astro%407.3.8","date":"2026-10-08T15:38:38Z","type":"stable","version":"astro@7.3.8"},{"url":"https://github.com/withastro/astro/releases/tag/astro-vscode%402.17.2","date":"2026-10-08T15:38:44Z","type":"stable","version":"astro-vscode@2.17.2"},{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/vercel%4011.0.13","date":"2026-10-08T15:38:53Z","type":"stable","version":"@astrojs/vercel@11.0.13"},{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/netlify%408.2.9","date":"2026-10-08T15:38:50Z","type":"stable","version":"@astrojs/netlify@8.2.9"},{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/markdoc%402.0.11","date":"2026-10-08T15:38:47Z","type":"stable","version":"@astrojs/markdoc@2.0.11"},{"url":"https://github.com/withastro/astro/releases/tag/astro%407.3.7","date":"2026-10-07T21:35:22Z","type":"stable","version":"astro@7.3.7"},{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/netlify%408.2.8","date":"2026-10-07T21:35:28Z","type":"stable","version":"@astrojs/netlify@8.2.8"},{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/language-server%402.17.2","date":"2026-10-07T21:35:25Z","type":"stable","version":"@astrojs/language-server@2.17.2"},{"url":"https://github.com/withastro/astro/releases/tag/create-astro%405.2.5","date":"2026-10-06T12:41:50Z","type":"stable","version":"create-astro@5.2.5"},{"url":"https://github.com/withastro/astro/releases/tag/astro%407.3.6","date":"2026-10-06T12:42:11Z","type":"stable","version":"astro@7.3.6"},{"url":"https://github.com/withastro/astro/releases/tag/astro-vscode%402.17.1","date":"2026-10-06T12:41:56Z","type":"stable","version":"astro-vscode@2.17.1"},{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/vercel%4011.0.12","date":"2026-10-06T12:42:29Z","type":"stable","version":"@astrojs/vercel@11.0.12"},{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/react%407.0.1","date":"2026-10-06T12:42:02Z","type":"stable","version":"@astrojs/react@7.0.1"},{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/preact%406.0.6","date":"2026-10-06T12:41:59Z","type":"stable","version":"@astrojs/preact@6.0.6"},{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/node%4011.1.7","date":"2026-10-06T12:42:26Z","type":"stable","version":"@astrojs/node@11.1.7"},{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/netlify%408.2.7","date":"2026-10-06T12:42:23Z","type":"stable","version":"@astrojs/netlify@8.2.7"},{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/mdx%408.0.3","date":"2026-10-06T12:42:20Z","type":"stable","version":"@astrojs/mdx@8.0.3"},{"url":"https://github.com/withastro/astro/releases/tag/%40astrojs/markdown-satteri%400.4.3","date":"2026-10-06T12:42:08Z","type":"stable","version":"@astrojs/markdown-satteri@0.4.3"}]` | `[{"url":"https://github.com/preactjs/preact/releases/tag/11.0.1","date":"2026-10-08T08:28:17Z","type":"stable","version":"11.0.1"},{"url":"https://github.com/preactjs/preact/releases/tag/11.0.0","date":"2026-09-30T13:09:07Z","type":"stable","version":"11.0.0"},{"url":"https://github.com/preactjs/preact/releases/tag/11.0.0-rc.2","date":"2026-09-08T09:03:07Z","type":"prerelease","version":"11.0.0-rc.2"},{"url":"https://github.com/preactjs/preact/releases/tag/11.0.0-rc.1","date":"2026-08-26T07:49:33Z","type":"prerelease","version":"11.0.0-rc.1"},{"url":"https://github.com/preactjs/preact/releases/tag/11.0.0-rc.0","date":"2026-08-10T06:17:58Z","type":"prerelease","version":"11.0.0-rc.0"},{"url":"https://github.com/preactjs/preact/releases/tag/10.29.8","date":"2026-08-01T09:57:31Z","type":"stable","version":"10.29.8"},{"url":"https://github.com/preactjs/preact/releases/tag/11.0.0-beta.2","date":"2026-07-15T16:46:28Z","type":"prerelease","version":"11.0.0-beta.2"},{"url":"https://github.com/preactjs/preact/releases/tag/10.29.7","date":"2026-07-08T17:33:42Z","type":"stable","version":"10.29.7"},{"url":"https://github.com/preactjs/preact/releases/tag/10.29.6","date":"2026-07-08T07:34:46Z","type":"stable","version":"10.29.6"},{"url":"https://github.com/preactjs/preact/releases/tag/10.29.5","date":"2026-07-07T16:51:01Z","type":"stable","version":"10.29.5"},{"url":"https://github.com/preactjs/preact/releases/tag/10.29.4","date":"2026-07-03T10:58:50Z","type":"stable","version":"10.29.4"},{"url":"https://github.com/preactjs/preact/releases/tag/10.29.3","date":"2026-06-26T05:16:07Z","type":"stable","version":"10.29.3"},{"url":"https://github.com/preactjs/preact/releases/tag/10.29.2","date":"2026-05-17T09:58:18Z","type":"stable","version":"10.29.2"},{"url":"https://github.com/preactjs/preact/releases/tag/10.29.1","date":"2026-04-03T10:43:40Z","type":"stable","version":"10.29.1"},{"url":"https://github.com/preactjs/preact/releases/tag/10.29.0","date":"2026-03-10T18:28:07Z","type":"stable","version":"10.29.0"},{"url":"https://github.com/preactjs/preact/releases/tag/10.28.4","date":"2026-02-19T07:15:06Z","type":"stable","version":"10.28.4"},{"url":"https://github.com/preactjs/preact/releases/tag/11.0.0-beta.1","date":"2026-02-15T10:10:26Z","type":"prerelease","version":"11.0.0-beta.1"},{"url":"https://github.com/preactjs/preact/releases/tag/10.28.3","date":"2026-01-31T09:58:48Z","type":"stable","version":"10.28.3"},{"url":"https://github.com/preactjs/preact/releases/tag/10.28.2","date":"2026-01-06T14:51:37Z","type":"stable","version":"10.28.2"},{"url":"https://github.com/preactjs/preact/releases/tag/10.27.3","date":"2026-01-06T14:59:45Z","type":"stable","version":"10.27.3"}]` |
| security.gdpr | yes | - |
| security.scorecard | - | 5.8 |
| security.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"}` |

## Capabilities (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) |

*Source: vioscaleAI. Generated 2026-10-16T20:58:16.292Z. "-" = undocumented, not absent.*