# Spring Boot vs Vapor

**Leader by vioscaleAI score:** Spring Boot

| Attribute | Spring Boot | Vapor |
|---|---|---|
| **vioscaleAI score** | 65.8 (51% (medium)) | 55.9 (67% (medium)) |
| activity.commits_last_30d | 100 | 29 |
| adoption.dependent_repos | 164,184 | 796 |
| adoption.github_stars | 81,557 | 26,225 |
| content.faq | `[{"answer":"A Spring-based framework that provides opinionated defaults and pre-configured dependencies to simplify Java application development, allowing developers to create deployable applications without extensive setup. It is indexed under Web Frameworks.","source":"https://spring.io/projects/spring-boot","question":"What is Spring Boot?","confidence":0.6},{"answer":"Yes. Spring Boot can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://spring.io/projects/spring-boot","question":"Can Spring Boot be self-hosted?","confidence":0.6},{"answer":"Yes. Spring Boot is published under the Apache-2.0 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/spring-projects/spring-boot","question":"Is Spring Boot open source?","confidence":0.95}]` | `[{"answer":"A framework for building HTTP servers and APIs using Swift with strong type safety and performance optimization. It is indexed under Web Frameworks.","source":"https://www.vapor.codes/","question":"What is Vapor?","confidence":0.6},{"answer":"Vapor 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://www.vapor.codes/","question":"Is Vapor free to use?","confidence":0.6},{"answer":"Yes. Vapor 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/vapor/vapor","question":"Is Vapor open source?","confidence":0.95}]` |
| deployment.options | `{"self_hosted":true}` | - |
| description.long | Enables developers to create complete server applications quickly using embedded web servers, automatic dependency configuration, and built-in operational features. | Vapor is a framework for creating server-side applications, HTTP services, and backends using Swift. It provides APIs designed for writing safe, efficient, and maintainable server applications. |
| features.capabilities | `{"language":"Java","api_routes":true,"server_components":true,"architecture_style":"structured-di","dependency_injection":true}` | `{"language":"Swift","rendering":"ssr","api_routes":true}` |
| language.primary | Java | Swift |
| license.spdx | Apache-2.0 | MIT |
| pricing | `{"type":"hybrid","freeTier":true,"sourceUrl":"https://spring.io/projects/spring-boot","retrievedAt":"2026-10-05T11:07:44.884Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://www.vapor.codes/","retrievedAt":"2026-08-13T22:59:42.865Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | commercial |
| pricing.price_level | low | free |
| release.cadence_days | - | 14 |
| release.history | `[{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.2.0-M2","date":"2026-09-24T10:38:37Z","type":"prerelease","version":"v4.2.0-M2"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.2.0-M1","date":"2026-08-20T20:09:59Z","type":"prerelease","version":"v4.2.0-M1"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.1.1","date":"2026-08-20T20:02:36Z","type":"stable","version":"v4.1.1"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.0.8","date":"2026-08-21T02:39:58Z","type":"stable","version":"v4.0.8"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v3.5.16","date":"2026-06-25T11:00:26Z","type":"stable","version":"v3.5.16"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.1.0","date":"2026-06-10T18:21:42Z","type":"stable","version":"v4.1.0"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.0.7","date":"2026-06-10T18:50:46Z","type":"stable","version":"v4.0.7"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v3.5.15","date":"2026-06-10T19:30:46Z","type":"stable","version":"v3.5.15"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.1.0-RC1","date":"2026-04-23T15:54:20Z","type":"prerelease","version":"v4.1.0-RC1"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.0.6","date":"2026-04-23T15:39:24Z","type":"stable","version":"v4.0.6"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v3.5.14","date":"2026-04-23T16:01:25Z","type":"stable","version":"v3.5.14"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.1.0-M4","date":"2026-03-26T11:04:53Z","type":"prerelease","version":"v4.1.0-M4"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.0.5","date":"2026-03-26T11:05:31Z","type":"stable","version":"v4.0.5"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v3.5.13","date":"2026-03-26T11:03:01Z","type":"stable","version":"v3.5.13"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.1.0-M3","date":"2026-03-20T02:49:46Z","type":"prerelease","version":"v4.1.0-M3"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.0.4","date":"2026-03-19T13:51:25Z","type":"stable","version":"v4.0.4"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v3.5.12","date":"2026-03-19T14:01:08Z","type":"stable","version":"v3.5.12"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.1.0-M2","date":"2026-02-19T18:05:50Z","type":"prerelease","version":"v4.1.0-M2"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v4.0.3","date":"2026-02-19T14:02:24Z","type":"stable","version":"v4.0.3"},{"url":"https://github.com/spring-projects/spring-boot/releases/tag/v3.5.11","date":"2026-02-19T11:51:10Z","type":"stable","version":"v3.5.11"}]` | `[{"url":"https://github.com/vapor/vapor/releases/tag/5.0.0-beta.4","date":"2026-10-13T11:49:31Z","type":"stable","version":"5.0.0-beta.4"},{"url":"https://github.com/vapor/vapor/releases/tag/5.0.0-beta.3","date":"2026-10-01T14:38:50Z","type":"stable","version":"5.0.0-beta.3"},{"url":"https://github.com/vapor/vapor/releases/tag/4.122.2","date":"2026-09-17T10:04:26Z","type":"stable","version":"4.122.2"},{"url":"https://github.com/vapor/vapor/releases/tag/5.0.0-beta.2","date":"2026-09-16T14:41:45Z","type":"stable","version":"5.0.0-beta.2"},{"url":"https://github.com/vapor/vapor/releases/tag/5.0.0-beta.1","date":"2026-09-15T12:51:10Z","type":"stable","version":"5.0.0-beta.1"},{"url":"https://github.com/vapor/vapor/releases/tag/4.122.1","date":"2026-08-25T16:42:26Z","type":"stable","version":"4.122.1"},{"url":"https://github.com/vapor/vapor/releases/tag/5.0.0-alpha.2","date":"2026-08-11T14:44:16Z","type":"prerelease","version":"5.0.0-alpha.2"},{"url":"https://github.com/vapor/vapor/releases/tag/4.122.0","date":"2026-07-01T21:45:49Z","type":"stable","version":"4.122.0"},{"url":"https://github.com/vapor/vapor/releases/tag/5.0.0-alpha.1","date":"2026-06-11T19:25:37Z","type":"prerelease","version":"5.0.0-alpha.1"},{"url":"https://github.com/vapor/vapor/releases/tag/4.121.4","date":"2026-04-10T17:17:16Z","type":"stable","version":"4.121.4"},{"url":"https://github.com/vapor/vapor/releases/tag/4.121.3","date":"2026-02-24T17:37:47Z","type":"stable","version":"4.121.3"},{"url":"https://github.com/vapor/vapor/releases/tag/4.121.2","date":"2026-02-10T16:23:51Z","type":"stable","version":"4.121.2"},{"url":"https://github.com/vapor/vapor/releases/tag/4.121.1","date":"2026-01-14T13:48:58Z","type":"stable","version":"4.121.1"},{"url":"https://github.com/vapor/vapor/releases/tag/4.121.0","date":"2026-01-05T12:16:24Z","type":"stable","version":"4.121.0"},{"url":"https://github.com/vapor/vapor/releases/tag/4.120.0","date":"2025-12-12T22:35:41Z","type":"stable","version":"4.120.0"},{"url":"https://github.com/vapor/vapor/releases/tag/4.119.2","date":"2025-11-11T15:07:16Z","type":"stable","version":"4.119.2"},{"url":"https://github.com/vapor/vapor/releases/tag/4.119.1","date":"2025-11-10T13:09:06Z","type":"stable","version":"4.119.1"},{"url":"https://github.com/vapor/vapor/releases/tag/4.119.0","date":"2025-11-05T11:24:54Z","type":"stable","version":"4.119.0"},{"url":"https://github.com/vapor/vapor/releases/tag/4.118.0","date":"2025-11-04T15:08:07Z","type":"stable","version":"4.118.0"},{"url":"https://github.com/vapor/vapor/releases/tag/4.117.2","date":"2025-11-03T16:24:04Z","type":"stable","version":"4.117.2"}]` |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | - |
| security.scorecard | 7.2 | 7.4 |
| security.vulnerabilities | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.springframework.boot%3Aspring-boot-starter-actuator&per_page=100","last_12m":2,"max_severity":"HIGH"}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=swiftpm&package_name=github.com%2Fvapor%2Fvapor&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Web Frameworks)

| Capability | Spring Boot | Vapor |
|---|:--:|:--:|
| **Core** |  |  |
| Rendering model | - | Server-side |
| File-based routing | - | - |
| Language | Java | Swift |
| **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 2026-10-16T20:51:14.264Z. "-" = undocumented, not absent.*