# NestJS vs Ruby on Rails

| Attribute | NestJS | Ruby on Rails |
|---|---|---|
| **vioscaleAI score** | 74.6 (76% (high)) | 71.8 (51% (medium)) |
| activity.commits_last_30d | 100 | 100 |
| adoption.dependent_repos | 78,848 | 1,358,186 |
| adoption.github_stars | 76,788 | 58,803 |
| content.faq | `[{"answer":"A progressive Node.js framework built with TypeScript that emphasizes structured architecture, dependency injection, and microservice support for building server-side applications. It is indexed under Web Frameworks.","source":"https://nestjs.com","question":"What is NestJS?","confidence":0.6},{"answer":"NestJS offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://nestjs.com","question":"Is NestJS free?","confidence":0.6},{"answer":"NestJS supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://nestjs.com","question":"What platforms does NestJS support?","confidence":0.6},{"answer":"Yes. NestJS can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://nestjs.com","question":"Can NestJS be self-hosted?","confidence":0.6},{"answer":"We have confirmed 9 integrations for NestJS, including Express, Fastify, GraphQL, TypeORM, Swagger/OpenAPI, Bull, WebSockets and Microservices, plus 1 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://nestjs.com","question":"What does NestJS integrate with?","confidence":0.6},{"answer":"Yes. NestJS 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/nestjs/nest","question":"Is NestJS open source?","confidence":0.95}]` | `[{"answer":"A complete web application framework for Ruby that provides integrated tools, libraries, and conventions for building database-backed web applications across the full stack—from database models to frontend templates and controllers. It is indexed under Web Frameworks.","source":"https://rubyonrails.org","question":"What is Ruby on Rails?","confidence":0.6},{"answer":"Ruby on Rails 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://rubyonrails.org","question":"Is Ruby on Rails free to use?","confidence":0.6},{"answer":"Ruby on Rails supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://rubyonrails.org","question":"What platforms does Ruby on Rails support?","confidence":0.6},{"answer":"Yes. Ruby on Rails can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://rubyonrails.org","question":"Can Ruby on Rails be self-hosted?","confidence":0.6},{"answer":"Yes. Ruby on Rails 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/rails/rails","question":"Is Ruby on Rails open source?","confidence":0.95}]` |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | A progressive Node.js framework built with TypeScript that emphasizes structured architecture, dependency injection, and microservice support for building server-side applications. | A full-stack framework for building web applications with integrated database modeling, templating, email handling, real-time WebSocket support, background job processing, and security features. |
| features.capabilities | `{"language":"TypeScript/JavaScript","api_first":true,"api_routes":true,"async_model":"event-loop-async","cli_scaffolding":true,"openapi_autogen":true,"language_runtime":"JS/TS","typescript_first":true,"websocket_support":true,"architecture_style":"structured-di","dependency_injection":true}` | `{"language":"Ruby","rendering":"ssr","api_routes":true,"file_routing":true,"license_type":"MIT/BSD","orm_included":true,"cli_scaffolding":true,"language_runtime":"Ruby","typescript_first":false,"websocket_support":true,"architecture_style":"full-stack-mvc","templating_included":true,"background_jobs_included":true}` |
| integrations.count | 9 | - |
| integrations.list | `[{"name":"Express"},{"name":"Fastify"},{"name":"GraphQL"},{"name":"TypeORM"},{"name":"Swagger/OpenAPI"},{"name":"Bull"},{"name":"WebSockets"},{"name":"Microservices"},{"name":"Angular Universal"}]` | - |
| language.primary | TypeScript | Ruby |
| license.spdx | MIT | MIT |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true}` | `{"web":true}` |
| pricing | `{"type":"hybrid","freeTier":true,"sourceUrl":"https://nestjs.com","retrievedAt":"2026-08-21T12:46:31.197Z"}` | `{"type":"open_source","sourceUrl":"https://rubyonrails.org","retrievedAt":"2026-08-16T21:36:16.955Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | low | free |
| pricing.transparent | no | - |
| release.cadence_days | 3 | - |
| release.history | `[{"url":"https://github.com/nestjs/nest/releases/tag/v12.1.1","date":"2026-09-28T09:06:52Z","type":"stable","version":"v12.1.1"},{"url":"https://github.com/nestjs/nest/releases/tag/v12.1.0","date":"2026-09-23T08:00:20Z","type":"stable","version":"v12.1.0"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.2.6","date":"2026-09-23T09:09:35Z","type":"stable","version":"v11.2.6"},{"url":"https://github.com/nestjs/nest/releases/tag/v12.0.4","date":"2026-09-21T08:03:41Z","type":"stable","version":"v12.0.4"},{"url":"https://github.com/nestjs/nest/releases/tag/v12.0.3","date":"2026-09-15T07:57:13Z","type":"stable","version":"v12.0.3"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.2.5","date":"2026-09-15T07:11:48Z","type":"stable","version":"v11.2.5"},{"url":"https://github.com/nestjs/nest/releases/tag/v12.0.2","date":"2026-09-14T13:53:20Z","type":"stable","version":"v12.0.2"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.2.4","date":"2026-09-14T18:15:40Z","type":"stable","version":"v11.2.4"},{"url":"https://github.com/nestjs/nest/releases/tag/v12.0.0","date":"2026-08-27T12:23:49Z","type":"stable","version":"v12.0.0"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.2.3","date":"2026-08-25T10:59:41Z","type":"stable","version":"v11.2.3"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.2.2","date":"2026-08-25T07:59:18Z","type":"stable","version":"v11.2.2"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.2.1","date":"2026-08-14T17:53:21Z","type":"stable","version":"v11.2.1"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.2.0","date":"2026-08-14T12:13:03Z","type":"stable","version":"v11.2.0"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.1.29","date":"2026-08-10T09:40:32Z","type":"stable","version":"v11.1.29"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.1.28","date":"2026-07-08T08:33:50Z","type":"stable","version":"v11.1.28"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.1.27","date":"2026-06-15T09:17:02Z","type":"stable","version":"v11.1.27"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.1.26","date":"2026-06-08T12:37:55Z","type":"stable","version":"v11.1.26"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.1.25","date":"2026-06-08T07:39:37Z","type":"stable","version":"v11.1.25"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.1.24","date":"2026-05-25T08:41:52Z","type":"stable","version":"v11.1.24"},{"url":"https://github.com/nestjs/nest/releases/tag/v11.1.23","date":"2026-05-21T18:18:12Z","type":"stable","version":"v11.1.23"}]` | `[{"url":"https://github.com/rails/rails/releases/tag/v8.1.4","date":"2026-09-24T14:19:52Z","type":"stable","version":"v8.1.4"},{"url":"https://github.com/rails/rails/releases/tag/v7.2.4","date":"2026-09-24T16:28:35Z","type":"stable","version":"v7.2.4"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.3.1","date":"2026-07-29T14:59:54Z","type":"stable","version":"v8.1.3.1"},{"url":"https://github.com/rails/rails/releases/tag/v8.0.5.1","date":"2026-07-29T15:08:22Z","type":"stable","version":"v8.0.5.1"},{"url":"https://github.com/rails/rails/releases/tag/v7.2.3.2","date":"2026-07-29T15:05:22Z","type":"stable","version":"v7.2.3.2"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.3","date":"2026-03-24T20:26:02Z","type":"stable","version":"v8.1.3"},{"url":"https://github.com/rails/rails/releases/tag/v8.0.5","date":"2026-03-24T20:19:33Z","type":"stable","version":"v8.0.5"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.2.1","date":"2026-03-23T19:42:42Z","type":"stable","version":"v8.1.2.1"},{"url":"https://github.com/rails/rails/releases/tag/v8.0.4.1","date":"2026-03-23T19:38:25Z","type":"stable","version":"v8.0.4.1"},{"url":"https://github.com/rails/rails/releases/tag/v7.2.3.1","date":"2026-03-23T19:32:34Z","type":"stable","version":"v7.2.3.1"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.2","date":"2026-01-08T20:17:17Z","type":"stable","version":"v8.1.2"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.1","date":"2025-10-28T23:46:29Z","type":"stable","version":"v8.1.1"},{"url":"https://github.com/rails/rails/releases/tag/v8.0.4","date":"2025-10-28T23:43:23Z","type":"stable","version":"v8.0.4"},{"url":"https://github.com/rails/rails/releases/tag/v7.2.3","date":"2025-10-28T23:24:18Z","type":"stable","version":"v7.2.3"},{"url":"https://github.com/rails/rails/releases/tag/v7.1.6","date":"2025-10-28T23:19:19Z","type":"stable","version":"v7.1.6"},{"url":"https://github.com/rails/rails/releases/tag/v7.0.10","date":"2025-10-28T23:12:55Z","type":"stable","version":"v7.0.10"},{"url":"https://github.com/rails/rails/releases/tag/v7.0.9","date":"2025-10-28T23:02:29Z","type":"stable","version":"v7.0.9"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.0","date":"2025-10-22T00:35:05Z","type":"stable","version":"v8.1.0"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.0.rc1","date":"2025-10-15T00:50:43Z","type":"prerelease","version":"v8.1.0.rc1"},{"url":"https://github.com/rails/rails/releases/tag/v8.0.3","date":"2025-09-22T22:19:48Z","type":"stable","version":"v8.0.3"}]` |
| security.disclosure_policy | - | yes |
| security.fedramp | yes | - |
| security.scorecard | 7.6 | 6.4 |
| security.trust_center | - | https://rubyonrails.org/security |
| security.vulnerabilities | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40nestjs%2Fcommon&per_page=100","last_12m":0,"max_severity":"MODERATE"}` | `{"count":18,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=rubygems&package_name=activesupport&per_page=100","last_12m":3,"max_severity":"CRITICAL"}` |

## Capabilities (Web Frameworks)

| Capability | NestJS | Ruby on Rails |
|---|:--:|:--:|
| **Core** |  |  |
| Rendering model | - | Server-side |
| File-based routing | - | ✓ |
| Language | TypeScript/JavaScript | Ruby |
| **Rendering** |  |  |
| Server components | - | - |
| Streaming SSR | - | - |
| **Fullstack** |  |  |
| Built-in API / backend routes | ✓ | ✓ |
| **DX** |  |  |
| First-class TypeScript | ✓ | ✗ |
| Fast refresh / HMR | - | - |
| **Deployment** |  |  |
| Edge runtime support | - | - |

*Source: vioscaleAI. Generated 2026-10-16T20:14:30.463Z. "-" = undocumented, not absent.*