# Elysia vs Ruby on Rails

**Leader by Vioscale score:** Ruby on Rails

| Attribute | Elysia | Ruby on Rails |
|---|---|---|
| **Vioscale score** | 57.5 (70% (medium)) | 66.5 (52% (medium)) |
| activity.commits_last_30d | 7 | 100 |
| adoption.dependent_repos | 45 | 1,358,186 |
| adoption.github_stars | 18,975 | 58,719 |
| adoption.package_downloads_weekly | 1,043,958 | - |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | A server-side TypeScript framework for building type-safe APIs with exceptional performance. Built on Bun runtime, it delivers significantly faster request handling than traditional Node frameworks through advanced type inference and validation. | A Ruby-based framework bundling everything needed for web development: database management, templating engines, email delivery, real-time updates, async job handling, file storage, and built-in protections against common attacks like SQL injection and cross-site scripting. |
| features.capabilities | `{"language":"TypeScript","api_routes":true,"typescript_first":true}` | `{"language":"Ruby","rendering":"ssr","api_routes":true,"typescript_first":false}` |
| language.primary | TypeScript | Ruby |
| license.spdx | MIT | MIT |
| platform.support | `{"cli":true}` | `{"mac":true,"web":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://elysiajs.com/","retrievedAt":"2026-08-13T23:06:30.535Z"}` | `{"type":"open_source","sourceUrl":"https://rubyonrails.org","retrievedAt":"2026-08-16T21:36:16.955Z"}` |
| pricing.free_tier | - | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| release.cadence_days | 9 | - |
| release.history | `[{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.30","date":"2026-08-26T16:53:35Z","type":"stable","version":"1.4.30"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.29","date":"2026-06-16T22:27:12Z","type":"stable","version":"1.4.29"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.28","date":"2026-03-16T22:27:49Z","type":"stable","version":"1.4.28"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.27","date":"2026-03-01T13:55:44Z","type":"stable","version":"1.4.27"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.26","date":"2026-02-25T10:22:24Z","type":"stable","version":"1.4.26"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.25","date":"2026-02-12T12:30:52Z","type":"stable","version":"1.4.25"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.24","date":"2026-02-10T20:04:14Z","type":"stable","version":"1.4.24"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.23","date":"2026-02-09T04:37:05Z","type":"stable","version":"1.4.23"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.22","date":"2026-01-14T04:57:38Z","type":"stable","version":"1.4.22"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.21","date":"2026-01-04T11:51:33Z","type":"stable","version":"1.4.21"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.20","date":"2026-01-03T14:35:31Z","type":"stable","version":"1.4.20"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.19","date":"2025-12-13T12:41:01Z","type":"stable","version":"1.4.19"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.18","date":"2025-12-04T09:04:14Z","type":"stable","version":"1.4.18"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.17","date":"2025-12-02T07:23:21Z","type":"stable","version":"1.4.17"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.16","date":"2025-11-13T04:33:17Z","type":"stable","version":"1.4.16"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.15","date":"2025-11-03T07:05:57Z","type":"stable","version":"1.4.15"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.14","date":"2025-11-03T04:04:06Z","type":"stable","version":"1.4.14"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.13","date":"2025-10-23T07:21:57Z","type":"stable","version":"1.4.13"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.12","date":"2025-10-15T13:46:37Z","type":"stable","version":"1.4.12"},{"url":"https://github.com/elysiajs/elysia/releases/tag/1.4.11","date":"2025-10-11T20:45:43Z","type":"stable","version":"1.4.11"}]` | `[{"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"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.0.beta1","date":"2025-09-04T12:30:05Z","type":"prerelease","version":"v8.1.0.beta1"},{"url":"https://github.com/rails/rails/releases/tag/v8.0.2.1","date":"2025-08-13T20:38:30Z","type":"stable","version":"v8.0.2.1"}]` |
| security.disclosure_policy | - | yes |
| security.scorecard | - | 6.8 |
| security.vulnerabilities | `{"count":4,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=elysia&per_page=100","last_12m":4,"max_severity":"CRITICAL"}` | `{"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 | Elysia | Ruby on Rails |
|---|:--:|:--:|
| **Core** |  |  |
| Rendering model | - | Server-side |
| File-based routing | - | - |
| Language | TypeScript | Ruby |
| **Rendering** |  |  |
| Server components | - | - |
| Streaming SSR | - | - |
| **Fullstack** |  |  |
| Built-in API / backend routes | ✓ | ✓ |
| **DX** |  |  |
| First-class TypeScript | ✓ | ✗ |
| Fast refresh / HMR | - | - |
| **Deployment** |  |  |
| Edge runtime support | - | - |

*Source: Vioscale. Generated 2026-09-01T17:08:25.957Z. "-" = undocumented, not absent.*