# Ember vs Headless UI

| Attribute | Ember | Headless UI |
|---|---|---|
| **vioscaleAI score** | 70.4 (70% (medium)) | 67.4 (57% (medium)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 7,078 | 45,352 |
| adoption.github_stars | 22,564 | 28,775 |
| adoption.package_downloads_weekly | 244,428 | 7,496,681 |
| 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":"Open-source library of fully accessible UI components designed to be completely unstyled, providing seamless integration with Tailwind CSS It is indexed under Frontend UI Frameworks.","source":"https://headlessui.com/","question":"What is Headless UI?","confidence":0.6},{"answer":"Headless 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://headlessui.com/","question":"Is Headless UI free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to Headless 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://headlessui.com/","question":"What platforms does Headless UI support?","confidence":0.6},{"answer":"We have confirmed 3 integrations for Headless UI, including React, Vue and Tailwind CSS. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://headlessui.com/","question":"What does Headless UI integrate with?","confidence":0.6},{"answer":"Yes. Headless 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/tailwindlabs/headlessui","question":"Is Headless UI open source?","confidence":0.99}]` |
| 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. | Provides unstyled, fully accessible UI components that you can style using utility classes from Tailwind CSS |
| 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":"Headless component library","bundle_size":"tiny","ssr_support":true,"virtual_dom":true,"component_model":true}` |
| integrations.count | - | 3 |
| integrations.list | - | `[{"name":"React"},{"name":"Vue"},{"name":"Tailwind CSS"}]` |
| 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://headlessui.com/","retrievedAt":"2026-08-13T23:00:21.344Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | commercial |
| pricing.price_level | free | free |
| pricing.transparent | yes | - |
| release.cadence_days | 4 | 12 |
| 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/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.2.10","date":"2026-04-07T17:11:30Z","type":"stable","version":"@headlessui/react@v2.2.10"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.2.9","date":"2025-09-25T13:51:49Z","type":"stable","version":"@headlessui/react@v2.2.9"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.2.8","date":"2025-09-12T15:34:21Z","type":"stable","version":"@headlessui/react@v2.2.8"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.2.7","date":"2025-07-30T14:04:23Z","type":"stable","version":"@headlessui/react@v2.2.7"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.2.6","date":"2025-07-24T14:50:04Z","type":"stable","version":"@headlessui/react@v2.2.6"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.2.5","date":"2025-07-23T11:23:56Z","type":"stable","version":"@headlessui/react@v2.2.5"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.2.4","date":"2025-05-20T14:17:25Z","type":"stable","version":"@headlessui/react@v2.2.4"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.2.3","date":"2025-05-12T21:49:39Z","type":"stable","version":"@headlessui/react@v2.2.3"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.2.2","date":"2025-04-17T13:18:58Z","type":"stable","version":"@headlessui/react@v2.2.2"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.2.1","date":"2025-04-04T14:48:26Z","type":"stable","version":"@headlessui/react@v2.2.1"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/tailwindcss%40v0.2.2","date":"2025-02-06T13:22:42Z","type":"stable","version":"@headlessui/tailwindcss@v0.2.2"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.2.0","date":"2024-10-25T13:52:27Z","type":"stable","version":"@headlessui/react@v2.2.0"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.1.10","date":"2024-10-10T18:58:56Z","type":"stable","version":"@headlessui/react@v2.1.10"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.1.9","date":"2024-10-03T09:58:43Z","type":"stable","version":"@headlessui/react@v2.1.9"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.1.8","date":"2024-09-12T10:36:03Z","type":"stable","version":"@headlessui/react@v2.1.8"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.1.7","date":"2024-09-11T15:33:57Z","type":"stable","version":"@headlessui/react@v2.1.7"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/vue%40v1.7.23","date":"2024-09-09T09:07:12Z","type":"stable","version":"@headlessui/vue@v1.7.23"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.1.6","date":"2024-09-09T19:15:42Z","type":"stable","version":"@headlessui/react@v2.1.6"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.1.5","date":"2024-09-04T14:37:47Z","type":"stable","version":"@headlessui/react@v2.1.5"},{"url":"https://github.com/tailwindlabs/headlessui/releases/tag/%40headlessui/react%40v2.1.4","date":"2024-09-03T15:26:48Z","type":"stable","version":"@headlessui/react@v2.1.4"}]` |
| security.disclosure_policy | yes | - |
| security.scorecard | 6.9 | 4.2 |
| 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=%40headlessui%2Freact&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Frontend UI Frameworks)

| Capability | Ember | Headless UI |
|---|:--:|:--:|
| **Core** |  |  |
| Paradigm | Component-based reactive framework | Headless 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 | Small (10–40kb) | Tiny (<10kb) |

*Source: vioscaleAI. Generated 2026-10-16T20:07:52.610Z. "-" = undocumented, not absent.*