# Ember vs shadcn/ui

**Leader by vioscaleAI score:** Ember

| Attribute | Ember | shadcn/ui |
|---|---|---|
| **vioscaleAI score** | 70.4 (70% (medium)) | 54.7 (39% (low)) |
| activity.commits_last_30d | 100 | 99 |
| adoption.dependent_repos | 7,078 | 0 |
| adoption.github_stars | 22,564 | 125,486 |
| adoption.package_downloads_weekly | 244,428 | - |
| content.faq | `[{"answer":"A JavaScript framework designed for long-term web application development with integrated routing, data management, testing infrastructure, and component architecture to enable teams to build and maintain rich user interfaces. It is indexed under Frontend UI Frameworks.","source":"https://emberjs.com/","question":"What is Ember?","confidence":0.6},{"answer":"Ember 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://emberjs.com/","question":"Is Ember free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to Ember. 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://emberjs.com/","question":"What platforms does Ember support?","confidence":0.6},{"answer":"Yes. Ember 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/emberjs/ember.js","question":"Is Ember open source?","confidence":0.99},{"answer":"Ember is available worldwide. The vendor is headquartered in the United States.","source":"https://emberjs.com/","question":"Where is Ember available?","confidence":0.75}]` | `[{"answer":"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. It is indexed under Frontend UI Frameworks.","source":"https://ui.shadcn.com/","question":"What is shadcn/ui?","confidence":0.6},{"answer":"shadcn/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://ui.shadcn.com/","question":"Is shadcn/ui free to use?","confidence":0.6},{"answer":"shadcn/ui supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://ui.shadcn.com/","question":"What platforms does shadcn/ui support?","confidence":0.6},{"answer":"Yes. shadcn/ui can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://ui.shadcn.com/","question":"Can shadcn/ui be self-hosted?","confidence":0.6},{"answer":"We have confirmed 5 integrations for shadcn/ui, including Radix UI, React, Tailwind CSS, Next.js and Vite. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://ui.shadcn.com/","question":"What does shadcn/ui integrate with?","confidence":0.6},{"answer":"Yes. shadcn/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/shadcn-ui/ui","question":"Is shadcn/ui open source?","confidence":0.95}]` |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | A framework that enables developers to create complex web applications using a component-based architecture with reactive data binding and template-driven views. | 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. |
| features.capabilities | `{"paradigm":"Component-based reactive framework","bundle_size":"small","virtual_dom":true,"component_model":true,"router_official":true,"state_management":true,"signals_reactivity":true}` | `{"paradigm":"Component library and design system toolkit","bundle_size":"small","ssr_support":true,"virtual_dom":true,"component_model":true,"router_official":false,"state_management":true,"typescript_first":true,"signals_reactivity":false}` |
| integrations.count | - | 6 |
| integrations.list | - | `[{"name":"Radix UI"},{"name":"React"},{"name":"React Aria"},{"name":"Tailwind CSS"},{"name":"Next.js"},{"name":"Vite"}]` |
| language.primary | TypeScript | TypeScript |
| license.spdx | MIT | MIT |
| market.availability | `{"hqCountry":"US","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://emberjs.com/","retrievedAt":"2026-10-13T13:47:22.736Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://ui.shadcn.com/","retrievedAt":"2026-08-14T08:34:38.943Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | commercial |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | 4 | 1 |
| release.history | `[{"url":"https://github.com/emberjs/ember.js/releases/tag/v7.3.0-ember-source","date":"2026-09-14T21:04:16Z","type":"stable","version":"v7.3.0-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v7.2.1-ember-source","date":"2026-09-14T20:56:11Z","type":"stable","version":"v7.2.1-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v7.3.0-beta.1-ember-source","date":"2026-08-09T19:17:09Z","type":"prerelease","version":"v7.3.0-beta.1-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v7.2.0-ember-source","date":"2026-08-10T15:19:50Z","type":"stable","version":"v7.2.0-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v7.2.0-beta.1-ember-source","date":"2026-06-22T21:09:25Z","type":"prerelease","version":"v7.2.0-beta.1-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v7.1.0-ember-source","date":"2026-06-22T20:43:22Z","type":"stable","version":"v7.1.0-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v7.1.0-beta.1-ember-source","date":"2026-05-12T17:39:52Z","type":"prerelease","version":"v7.1.0-beta.1-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v7.0.0-ember-source","date":"2026-05-12T17:39:18Z","type":"stable","version":"v7.0.0-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v6.12.0-ember-source","date":"2026-03-31T22:06:53Z","type":"stable","version":"v6.12.0-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v6.11.1-ember-source","date":"2026-03-27T18:20:04Z","type":"stable","version":"v6.11.1-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v6.8.4-ember-source","date":"2026-03-27T18:27:19Z","type":"stable","version":"v6.8.4-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v6.12.0-beta.3-ember-source","date":"2026-03-25T20:56:11Z","type":"prerelease","version":"v6.12.0-beta.3-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v6.12.0-beta.2-ember-source","date":"2026-03-10T01:18:23Z","type":"prerelease","version":"v6.12.0-beta.2-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v6.12.0-beta.1-ember-source","date":"2026-02-17T19:33:25Z","type":"prerelease","version":"v6.12.0-beta.1-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v6.11.0-ember-source","date":"2026-02-17T19:10:34Z","type":"stable","version":"v6.11.0-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v6.8.3-ember-source","date":"2026-02-16T16:34:42Z","type":"stable","version":"v6.8.3-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v6.11.0-beta.2-ember-source","date":"2026-02-02T19:43:26Z","type":"prerelease","version":"v6.11.0-beta.2-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v6.11.0-beta.1-ember-source","date":"2026-02-02T19:42:51Z","type":"prerelease","version":"v6.11.0-beta.1-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v6.10.0-ember-source","date":"2026-01-06T18:31:53Z","type":"stable","version":"v6.10.0-ember-source"},{"url":"https://github.com/emberjs/ember.js/releases/tag/v6.10.0-beta.1-ember-source","date":"2025-11-25T20:13:50Z","type":"prerelease","version":"v6.10.0-beta.1-ember-source"}]` | `[{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.21.4","date":"2026-10-07T11:11:31Z","type":"stable","version":"shadcn@4.21.4"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/%40shadcn/registry%400.1.3","date":"2026-10-07T11:11:28Z","type":"stable","version":"@shadcn/registry@0.1.3"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.21.3","date":"2026-10-06T06:17:47Z","type":"stable","version":"shadcn@4.21.3"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/%40shadcn/registry%400.1.2","date":"2026-10-06T06:17:45Z","type":"stable","version":"@shadcn/registry@0.1.2"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.21.2","date":"2026-10-05T14:38:22Z","type":"stable","version":"shadcn@4.21.2"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/%40shadcn/registry%400.1.1","date":"2026-10-05T14:38:19Z","type":"stable","version":"@shadcn/registry@0.1.1"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.21.1","date":"2026-10-01T10:30:53Z","type":"stable","version":"shadcn@4.21.1"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/%40shadcn/registry%400.1.0","date":"2026-10-01T10:30:50Z","type":"stable","version":"@shadcn/registry@0.1.0"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.21.0","date":"2026-09-04T05:32:33Z","type":"stable","version":"shadcn@4.21.0"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.20.1","date":"2026-09-02T16:34:13Z","type":"stable","version":"shadcn@4.20.1"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.20.0","date":"2026-09-02T12:02:03Z","type":"stable","version":"shadcn@4.20.0"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.19.1","date":"2026-08-31T09:55:48Z","type":"stable","version":"shadcn@4.19.1"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/%40shadcn/react%400.3.1","date":"2026-08-31T09:55:45Z","type":"stable","version":"@shadcn/react@0.3.1"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.19.0","date":"2026-08-21T17:28:23Z","type":"stable","version":"shadcn@4.19.0"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.18.0","date":"2026-08-13T18:44:31Z","type":"stable","version":"shadcn@4.18.0"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.17.0","date":"2026-08-11T20:39:12Z","type":"stable","version":"shadcn@4.17.0"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/%40shadcn/helpers%400.2.0","date":"2026-08-11T20:49:34Z","type":"stable","version":"@shadcn/helpers@0.2.0"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.16.2","date":"2026-08-06T11:37:08Z","type":"stable","version":"shadcn@4.16.2"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/%40shadcn/react%400.3.0","date":"2026-08-05T19:13:18Z","type":"stable","version":"@shadcn/react@0.3.0"},{"url":"https://github.com/shadcn-ui/ui/releases/tag/shadcn%404.16.1","date":"2026-07-31T13:58:43Z","type":"stable","version":"shadcn@4.16.1"}]` |
| security.disclosure_policy | yes | yes |
| security.scorecard | 6.9 | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=ember-source&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.mvnpm.at.shadcn%3Aregistry&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Frontend UI Frameworks)

| Capability | Ember | shadcn/ui |
|---|:--:|:--:|
| **Core** |  |  |
| Paradigm | Component-based reactive framework | 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 | Small (10–40kb) | Small (10–40kb) |

*Source: vioscaleAI. Generated 2026-10-16T22:11:59.667Z. "-" = undocumented, not absent.*