# Ember vs Stencil

**Leader by vioscaleAI score:** Ember

| Attribute | Ember | Stencil |
|---|---|---|
| **vioscaleAI score** | 70.4 (70% (medium)) | 60.8 (71% (medium)) |
| activity.commits_last_30d | 100 | 20 |
| adoption.dependent_repos | 7,078 | 1 |
| adoption.github_stars | 22,564 | 13,139 |
| adoption.package_downloads_weekly | 244,428 | 1,543,926 |
| 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":"A TypeScript-based framework for authoring standards-compliant web components and component libraries that run on any browser or framework without framework dependencies. It is indexed under Frontend UI Frameworks.","source":"https://stenciljs.com/","question":"What is Stencil?","confidence":0.6},{"answer":"Stencil supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://stenciljs.com/","question":"What platforms does Stencil support?","confidence":0.6},{"answer":"Yes. Stencil 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/@stencil/core","question":"Is Stencil open source?","confidence":0.85}]` |
| deployment.options | `{"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. | Stencil transforms TypeScript and JSX code into optimized web components through a build-time compilation process. It provides decorators for declaring component metadata, lifecycle hooks for managing component behavior, and virtual DOM rendering for efficient updates. |
| 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":"Web component compiler","bundle_size":"tiny","ssr_support":true,"virtual_dom":true,"component_model":true,"state_management":true,"typescript_first":true}` |
| language.primary | TypeScript | TypeScript |
| license.spdx | MIT | MIT |
| market.availability | `{"hqCountry":"US","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"web":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://stenciljs.com/","retrievedAt":"2026-10-13T13:46:15.636Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | - |
| release.cadence_days | 4 | 9 |
| 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/stenciljs/core/releases/tag/v4.45.2","date":"2026-10-05T11:21:10Z","type":"stable","version":"v4.45.2"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.45.1","date":"2026-09-23T10:09:49Z","type":"stable","version":"v4.45.1"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.45.0","date":"2026-09-12T00:06:08Z","type":"stable","version":"v4.45.0"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.44.2","date":"2026-08-26T16:44:04Z","type":"stable","version":"v4.44.2"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.44.1","date":"2026-08-21T11:31:44Z","type":"stable","version":"v4.44.1"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.44.0","date":"2026-08-11T15:07:47Z","type":"stable","version":"v4.44.0"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.43.5","date":"2026-05-28T19:07:17Z","type":"stable","version":"v4.43.5"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.43.4","date":"2026-04-13T12:46:38Z","type":"stable","version":"v4.43.4"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.43.3","date":"2026-04-13T12:44:59Z","type":"stable","version":"v4.43.3"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.43.2","date":"2026-02-27T09:27:22Z","type":"stable","version":"v4.43.2"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.43.1","date":"2026-02-20T17:27:50Z","type":"stable","version":"v4.43.1"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.43.0","date":"2026-02-17T08:52:30Z","type":"stable","version":"v4.43.0"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.42.1","date":"2026-02-06T17:46:42Z","type":"stable","version":"v4.42.1"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.42.0","date":"2026-02-01T23:42:03Z","type":"stable","version":"v4.42.0"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.41.3","date":"2026-01-23T12:35:33Z","type":"stable","version":"v4.41.3"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.41.2","date":"2026-01-16T10:22:43Z","type":"stable","version":"v4.41.2"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.41.1","date":"2026-01-08T23:40:35Z","type":"stable","version":"v4.41.1"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.41.0","date":"2026-01-02T22:24:06Z","type":"stable","version":"v4.41.0"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.40.1","date":"2025-12-23T22:42:57Z","type":"stable","version":"v4.40.1"},{"url":"https://github.com/stenciljs/core/releases/tag/v4.40.0","date":"2025-12-23T10:16:22Z","type":"stable","version":"v4.40.0"}]` |
| security.disclosure_policy | yes | - |
| security.scorecard | 6.9 | 6 |
| 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=go&package_name=github.com%2Fionic-team%2Fstencil&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Frontend UI Frameworks)

| Capability | Ember | Stencil |
|---|:--:|:--:|
| **Core** |  |  |
| Paradigm | Component-based reactive framework | Web component compiler |
| 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) | Tiny (<10kb) |

*Source: vioscaleAI. Generated 2026-10-16T19:15:42.836Z. "-" = undocumented, not absent.*