# Ember vs Lit

**Leader by vioscaleAI score:** Ember

| Attribute | Ember | Lit |
|---|---|---|
| **vioscaleAI score** | 70.4 (70% (medium)) | 62.3 (67% (medium)) |
| activity.commits_last_30d | 100 | 6 |
| adoption.dependent_repos | 7,078 | 22,879 |
| adoption.github_stars | 22,564 | 21,843 |
| adoption.package_downloads_weekly | 244,428 | 7,044,909 |
| 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 framework built on Web Components standards that adds reactivity and declarative templates while keeping bundle size tiny. Components update only their dynamic parts, eliminating the need for virtual DOM diffing. It is indexed under Frontend UI Frameworks.","source":"https://lit.dev/","question":"What is Lit?","confidence":0.6},{"answer":"Lit is open source, so it can be self-hosted and used at no licence cost. It is released under the BSD-3-Clause licence. Pricing changes often, so verify at source before relying on it.","source":"https://lit.dev/","question":"Is Lit free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to Lit. 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://lit.dev/","question":"What platforms does Lit support?","confidence":0.6},{"answer":"Yes. Lit is published under the BSD-3-Clause 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/lit/lit","question":"Is Lit open source?","confidence":0.99}]` |
| 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. | A web component framework that combines a reactive component base class with declarative templating and built-in styling, designed for minimal code overhead and fast performance. |
| 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 Components with reactive properties","bundle_size":"tiny","ssr_support":true,"virtual_dom":false,"component_model":true,"router_official":true,"state_management":true,"typescript_first":true,"signals_reactivity":true}` |
| integrations.count | - | 3 |
| integrations.list | - | `[{"name":"Preact Signals","category":"reactivity"},{"name":"React","native":true},{"name":"Preact","native":true},{"name":"Eleventy","native":true}]` |
| language.primary | TypeScript | TypeScript |
| license.spdx | MIT | BSD-3-Clause |
| 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","summary":"Open source, free to use","freeTier":true,"sourceUrl":"https://lit.dev/","retrievedAt":"2026-08-13T23:02:02.922Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | 4 | - |
| 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/lit/lit/releases/tag/lit%403.3.3","date":"2026-05-14T03:56:19Z","type":"stable","version":"lit@3.3.3"},{"url":"https://github.com/lit/lit/releases/tag/lit-html%403.3.3","date":"2026-05-14T03:56:01Z","type":"stable","version":"lit-html@3.3.3"},{"url":"https://github.com/lit/lit/releases/tag/%40lit/localize-tools%400.8.2","date":"2026-05-14T03:56:16Z","type":"stable","version":"@lit/localize-tools@0.8.2"},{"url":"https://github.com/lit/lit/releases/tag/%40lit-labs/ssr%404.1.0","date":"2026-05-14T03:56:04Z","type":"stable","version":"@lit-labs/ssr@4.1.0"},{"url":"https://github.com/lit/lit/releases/tag/%40lit-labs/ssr-dom-shim%401.6.0","date":"2026-05-14T03:56:22Z","type":"stable","version":"@lit-labs/ssr-dom-shim@1.6.0"},{"url":"https://github.com/lit/lit/releases/tag/%40lit-labs/signals%400.3.0","date":"2026-05-14T03:56:10Z","type":"stable","version":"@lit-labs/signals@0.3.0"},{"url":"https://github.com/lit/lit/releases/tag/%40lit-labs/rollup-plugin-minify-html-literals%400.2.0","date":"2026-05-14T03:56:07Z","type":"stable","version":"@lit-labs/rollup-plugin-minify-html-literals@0.2.0"},{"url":"https://github.com/lit/lit/releases/tag/%40lit-labs/gen-manifest%400.3.6","date":"2026-05-14T03:56:13Z","type":"stable","version":"@lit-labs/gen-manifest@0.3.6"},{"url":"https://github.com/lit/lit/releases/tag/lit%403.3.1","date":"2025-07-11T03:37:03Z","type":"stable","version":"lit@3.3.1"},{"url":"https://github.com/lit/lit/releases/tag/lit-html%403.3.1","date":"2025-07-11T03:37:00Z","type":"stable","version":"lit-html@3.3.1"},{"url":"https://github.com/lit/lit/releases/tag/lit-element%404.2.1","date":"2025-07-11T03:37:42Z","type":"stable","version":"lit-element@4.2.1"},{"url":"https://github.com/lit/lit/releases/tag/%40lit/task%401.0.3","date":"2025-07-11T03:37:27Z","type":"stable","version":"@lit/task@1.0.3"},{"url":"https://github.com/lit/lit/releases/tag/%40lit/reactive-element%402.1.1","date":"2025-07-11T03:37:33Z","type":"stable","version":"@lit/reactive-element@2.1.1"},{"url":"https://github.com/lit/lit/releases/tag/%40lit/react%401.0.8","date":"2025-07-11T03:37:36Z","type":"stable","version":"@lit/react@1.0.8"},{"url":"https://github.com/lit/lit/releases/tag/%40lit/context%401.1.6","date":"2025-07-11T03:36:54Z","type":"stable","version":"@lit/context@1.1.6"},{"url":"https://github.com/lit/lit/releases/tag/%40lit-labs/vue-utils%400.1.3","date":"2025-07-11T03:37:06Z","type":"stable","version":"@lit-labs/vue-utils@0.1.3"},{"url":"https://github.com/lit/lit/releases/tag/%40lit-labs/virtualizer%402.1.1","date":"2025-07-11T03:37:39Z","type":"stable","version":"@lit-labs/virtualizer@2.1.1"},{"url":"https://github.com/lit/lit/releases/tag/%40lit-labs/ssr-react%400.3.3","date":"2025-07-11T03:37:24Z","type":"stable","version":"@lit-labs/ssr-react@0.3.3"},{"url":"https://github.com/lit/lit/releases/tag/%40lit-labs/ssr-dom-shim%401.4.0","date":"2025-07-11T03:37:15Z","type":"stable","version":"@lit-labs/ssr-dom-shim@1.4.0"},{"url":"https://github.com/lit/lit/releases/tag/%40lit-labs/signals%400.1.3","date":"2025-07-11T03:37:30Z","type":"stable","version":"@lit-labs/signals@0.1.3"}]` |
| 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=npm&package_name=lit-html&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Frontend UI Frameworks)

| Capability | Ember | Lit |
|---|:--:|:--:|
| **Core** |  |  |
| Paradigm | Component-based reactive framework | Web Components with reactive properties |
| 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 2026-10-16T20:06:40.147Z. "-" = undocumented, not absent.*