# Astro vs Radix UI

**Leader by vioscaleAI score:** Astro

| Attribute | Astro | Radix UI |
|---|---|---|
| **vioscaleAI score** | 71.9 (57% (medium)) | 56.2 (34% (low)) |
| activity.commits_last_30d | 100 | 52 |
| adoption.dependent_repos | 18,705 | 54,868 |
| adoption.github_stars | 63,201 | 19,391 |
| adoption.package_downloads_weekly | 7,314,180 | - |
| 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":"An open-source library providing minimal, keyboard-navigable React components with built-in screen reader support. Each component is intentionally left unstyled, allowing developers to apply custom styling while inheriting robust accessibility patterns and interaction handling. It is indexed under Frontend UI Frameworks.","source":"https://www.radix-ui.com/primitives","question":"What is Radix UI?","confidence":0.6},{"answer":"Radix UI 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://www.radix-ui.com/primitives","question":"Is Radix UI free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to Radix UI. 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://www.radix-ui.com/primitives","question":"What platforms does Radix UI support?","confidence":0.6},{"answer":"Yes. Radix UI 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/radix-ui/primitives","question":"Is Radix UI open source?","confidence":0.95}]` |
| 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. | An open-source library providing reusable UI components with a focus on accessibility and ease of maintenance for building design systems and web applications. |
| 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":"React component library","bundle_size":"small","virtual_dom":true,"component_model":true,"typescript_first":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 | TypeScript |
| 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","summary":"Free and open source (MIT license)","freeTier":true,"sourceUrl":"https://www.radix-ui.com/primitives","retrievedAt":"2026-08-14T09:22:38.781Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| pricing.transparent | - | yes |
| 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"}]` | - |
| security.gdpr | yes | - |
| security.scorecard | - | 4.3 |
| 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":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40radix-ui%2Freact-compose-refs&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Frontend UI Frameworks)

| Capability | Astro | Radix UI |
|---|:--:|:--:|
| **Core** |  |  |
| Paradigm | Server-first JavaScript framework | React 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) | Small (10–40kb) |

*Source: vioscaleAI. Generated 2026-10-16T19:19:46.787Z. "-" = undocumented, not absent.*