# Fastify vs Symfony

**Leader by vioscaleAI score:** Fastify

| Attribute | Fastify | Symfony |
|---|---|---|
| **vioscaleAI score** | 70 (78% (high)) | 63.4 (61% (medium)) |
| activity.commits_last_30d | 20 | 100 |
| adoption.dependent_repos | 16,712 | 22,779 |
| adoption.github_stars | 37,232 | 31,164 |
| content.faq | `[{"answer":"A Node.js web framework optimized to handle high request volumes with minimal overhead, featuring a plugin system, JSON Schema validation, and native TypeScript support. It is indexed under Web Frameworks.","source":"https://fastify.dev","question":"What is Fastify?","confidence":0.6},{"answer":"Fastify 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://fastify.dev","question":"Is Fastify free to use?","confidence":0.6},{"answer":"Fastify supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://fastify.dev","question":"What platforms does Fastify support?","confidence":0.6},{"answer":"Yes. Fastify can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://fastify.dev","question":"Can Fastify be self-hosted?","confidence":0.6},{"answer":"We have confirmed 26 integrations for Fastify, including Next.js, Apollo Server, Angular, PostgreSQL, MongoDB, Redis, Elasticsearch and Swagger/OpenAPI, plus 18 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://fastify.dev","question":"What does Fastify integrate with?","confidence":0.6},{"answer":"Yes. Fastify 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/fastify/fastify","question":"Is Fastify open source?","confidence":0.95}]` | `[{"answer":"Symfony is a full-stack PHP framework offering built-in tools for routing, templating, database access, validation, email handling, testing, and security. It provides comprehensive documentation and is maintained by a large global developer community. It is indexed under Web Frameworks.","source":"https://symfony.com/","question":"What is Symfony?","confidence":0.6},{"answer":"Symfony 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://symfony.com/","question":"Is Symfony free to use?","confidence":0.6},{"answer":"Symfony supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://symfony.com/","question":"What platforms does Symfony support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Symfony, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://symfony.com/","question":"Can Symfony be self-hosted?","confidence":0.6},{"answer":"We have confirmed 4 integrations for Symfony, including Drupal, Laravel, API Platform and Composer. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://symfony.com/","question":"What does Symfony integrate with?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Symfony. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Symfony not holding them. Always confirm compliance directly before you rely on it.","source":"https://symfony.com/packages/security","question":"What security certifications does Symfony have?","confidence":0.7},{"answer":"Yes. Symfony 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/symfony/symfony","question":"Is Symfony open source?","confidence":0.95}]` |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | A Node.js web framework emphasizing fast request handling and low resource consumption while maintaining strong security, input validation, and developer experience. | A complete PHP framework that bundles routing, database mapping, templates, validation, testing, and security tools in a cohesive package for building web applications. |
| features.capabilities | `{"language":"JavaScript/TypeScript","api_first":true,"api_routes":true,"async_model":"event-loop-async","file_routing":true,"cli_scaffolding":true,"openapi_autogen":true,"language_runtime":"JS/TS","typescript_first":true,"websocket_support":true,"dependency_injection":true}` | `{"language":"PHP","rendering":"hybrid","api_routes":true,"license_type":"MIT/BSD","orm_included":true,"cli_scaffolding":true,"language_runtime":"PHP","architecture_style":"full-stack-mvc","templating_included":true,"testing_framework_included":true}` |
| integrations.count | 28 | 4 |
| integrations.list | `[{"name":"Next.js"},{"name":"Apollo Server"},{"name":"Angular"},{"name":"PostgreSQL"},{"name":"MongoDB"},{"name":"Redis"},{"name":"Elasticsearch"},{"name":"Swagger/OpenAPI"},{"name":"WebSocket"},{"name":"JWT"},{"name":"Helmet"},{"name":"Sentry"},{"name":"RabbitMQ"},{"name":"CORS"},{"name":"CSRF"},{"name":"OAuth2"},{"name":"Kubernetes"},{"name":"Firebase","native":false,"category":"auth"},{"name":"Mongoose","native":false,"category":"database"},{"name":"TypeORM","native":false,"category":"database"},{"name":"OAuth","native":false,"category":"auth"},{"name":"GraphQL","native":false,"category":"api"},{"name":"Swagger","native":false,"category":"documentation"},{"name":"OpenAPI","native":false,"category":"documentation"},{"name":"React","native":false,"category":"frontend"},{"name":"Vue","native":false,"category":"frontend"},{"name":"GCP Cloud Storage","native":false,"category":"storage"},{"name":"Casbin","native":false,"category":"authorization"},{"name":"ObjctionJS","native":false,"category":"database"},{"name":"AWS Lambda","native":false,"category":"cloud","direction":"outbound"},{"name":"Svelte","native":false,"category":"frontend","direction":"outbound"},{"name":"AMQP","native":false,"category":"messaging","direction":"bidirectional"},{"name":"Express","native":false,"category":"framework","direction":"outbound"},{"name":"Koa","native":false,"category":"framework","direction":"outbound"},{"name":"Hapi","native":false,"category":"framework","direction":"outbound"},{"name":"Nuxt","native":false,"category":"framework","direction":"outbound"},{"name":"Stoplight Elements","native":false,"category":"documentation","direction":"outbound"},{"name":"Server-Sent Events","native":false,"category":"protocol","direction":"outbound"},{"name":"TypeBox","native":true,"category":"library","direction":"outbound"},{"name":"Valkey","native":false,"category":"caching","direction":"outbound"}]` | `[{"name":"Drupal"},{"name":"Laravel"},{"name":"API Platform"},{"name":"Composer"}]` |
| language.primary | JavaScript | PHP |
| license.spdx | MIT | MIT |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://fastify.dev","retrievedAt":"2026-09-07T13:15:46.651Z"}` | `{"type":"open_source","summary":"Free and open source under MIT license","freeTier":true,"sourceUrl":"https://symfony.com/","retrievedAt":"2026-08-13T23:05:44.888Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | commercial |
| pricing.price_level | free | free |
| pricing.transparent | - | yes |
| release.cadence_days | 4 | - |
| release.history | `[{"url":"https://github.com/fastify/fastify/releases/tag/v6.0.0-alpha.4","date":"2026-09-17T07:53:08Z","type":"prerelease","version":"v6.0.0-alpha.4"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.12.5","date":"2026-09-16T10:19:43Z","type":"stable","version":"v5.12.5"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.12.4","date":"2026-09-11T09:19:29Z","type":"stable","version":"v5.12.4"},{"url":"https://github.com/fastify/fastify/releases/tag/v6.0.0-alpha.3","date":"2026-09-04T09:21:10Z","type":"prerelease","version":"v6.0.0-alpha.3"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.12.2","date":"2026-09-04T08:20:39Z","type":"stable","version":"v5.12.2"},{"url":"https://github.com/fastify/fastify/releases/tag/v6.0.0-alpha.2","date":"2026-08-19T01:54:36Z","type":"prerelease","version":"v6.0.0-alpha.2"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.12.1","date":"2026-08-18T19:51:41Z","type":"stable","version":"v5.12.1"},{"url":"https://github.com/fastify/fastify/releases/tag/v6.0.0-alpha.1","date":"2026-08-13T15:57:10Z","type":"prerelease","version":"v6.0.0-alpha.1"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.12.0","date":"2026-08-13T15:55:21Z","type":"stable","version":"v5.12.0"},{"url":"https://github.com/fastify/fastify/releases/tag/v6.0.0-alpha.0","date":"2026-08-11T08:32:37Z","type":"prerelease","version":"v6.0.0-alpha.0"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.11.3","date":"2026-08-08T06:55:46Z","type":"stable","version":"v5.11.3"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.11.2","date":"2026-08-03T08:21:47Z","type":"stable","version":"v5.11.2"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.11.1","date":"2026-08-03T08:10:10Z","type":"stable","version":"v5.11.1"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.11.0","date":"2026-07-30T09:32:16Z","type":"stable","version":"v5.11.0"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.10.0","date":"2026-07-05T09:37:06Z","type":"stable","version":"v5.10.0"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.9.0","date":"2026-06-28T08:21:36Z","type":"stable","version":"v5.9.0"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.8.5","date":"2026-04-14T12:09:02Z","type":"stable","version":"v5.8.5"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.8.4","date":"2026-03-23T10:31:20Z","type":"stable","version":"v5.8.4"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.8.3","date":"2026-03-23T10:20:21Z","type":"stable","version":"v5.8.3"},{"url":"https://github.com/fastify/fastify/releases/tag/v5.8.2","date":"2026-03-07T09:42:46Z","type":"stable","version":"v5.8.2"}]` | `[{"url":"https://github.com/symfony/symfony/releases/tag/v8.1.8","date":"2026-09-29T14:10:26Z","type":"stable","version":"v8.1.8"},{"url":"https://github.com/symfony/symfony/releases/tag/v7.4.20","date":"2026-09-29T14:07:34Z","type":"stable","version":"v7.4.20"},{"url":"https://github.com/symfony/symfony/releases/tag/v6.4.47","date":"2026-09-29T14:04:37Z","type":"stable","version":"v6.4.47"},{"url":"https://github.com/symfony/symfony/releases/tag/v8.1.7","date":"2026-09-15T07:15:39Z","type":"stable","version":"v8.1.7"},{"url":"https://github.com/symfony/symfony/releases/tag/v7.4.19","date":"2026-09-15T07:12:10Z","type":"stable","version":"v7.4.19"},{"url":"https://github.com/symfony/symfony/releases/tag/v6.4.46","date":"2026-09-15T07:08:48Z","type":"stable","version":"v6.4.46"},{"url":"https://github.com/symfony/symfony/releases/tag/v8.1.6","date":"2026-08-30T21:44:03Z","type":"stable","version":"v8.1.6"},{"url":"https://github.com/symfony/symfony/releases/tag/v7.4.18","date":"2026-08-30T21:39:48Z","type":"stable","version":"v7.4.18"},{"url":"https://github.com/symfony/symfony/releases/tag/v6.4.45","date":"2026-08-30T21:23:31Z","type":"stable","version":"v6.4.45"},{"url":"https://github.com/symfony/symfony/releases/tag/v8.1.5","date":"2026-08-22T13:47:37Z","type":"stable","version":"v8.1.5"},{"url":"https://github.com/symfony/symfony/releases/tag/v7.4.17","date":"2026-08-22T13:44:16Z","type":"stable","version":"v7.4.17"},{"url":"https://github.com/symfony/symfony/releases/tag/v6.4.44","date":"2026-08-22T13:40:40Z","type":"stable","version":"v6.4.44"},{"url":"https://github.com/symfony/symfony/releases/tag/v8.1.4","date":"2026-08-07T18:08:15Z","type":"stable","version":"v8.1.4"},{"url":"https://github.com/symfony/symfony/releases/tag/v7.4.16","date":"2026-08-07T18:03:30Z","type":"stable","version":"v7.4.16"},{"url":"https://github.com/symfony/symfony/releases/tag/v8.1.3","date":"2026-07-29T21:50:59Z","type":"stable","version":"v8.1.3"},{"url":"https://github.com/symfony/symfony/releases/tag/v8.1.2","date":"2026-07-29T11:58:17Z","type":"stable","version":"v8.1.2"},{"url":"https://github.com/symfony/symfony/releases/tag/v8.0.16","date":"2026-07-29T21:46:01Z","type":"stable","version":"v8.0.16"},{"url":"https://github.com/symfony/symfony/releases/tag/v8.0.15","date":"2026-07-29T11:49:08Z","type":"stable","version":"v8.0.15"},{"url":"https://github.com/symfony/symfony/releases/tag/v7.4.15","date":"2026-07-29T11:43:58Z","type":"stable","version":"v7.4.15"},{"url":"https://github.com/symfony/symfony/releases/tag/v6.4.43","date":"2026-07-29T11:39:13Z","type":"stable","version":"v6.4.43"}]` |
| security.disclosure_policy | - | yes |
| security.gdpr | - | yes |
| security.scorecard | 8.3 | 7.9 |
| security.trust_center | - | https://symfony.com/packages/security |
| security.vulnerabilities | `{"count":17,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=fastify&per_page=100","last_12m":12,"max_severity":"HIGH"}` | `{"count":94,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=packagist&package_name=symfony%2Fsymfony&per_page=100","last_12m":31,"max_severity":"CRITICAL"}` |

## Capabilities (Web Frameworks)

| Capability | Fastify | Symfony |
|---|:--:|:--:|
| **Core** |  |  |
| Rendering model | - | Hybrid (SSR+SSG+CSR) |
| File-based routing | ✓ | - |
| Language | JavaScript/TypeScript | PHP |
| **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 2026-10-16T19:01:53.289Z. "-" = undocumented, not absent.*