# Koa vs Spring Boot

**Leader by Vioscale score:** Spring Boot

| Attribute | Koa | Spring Boot |
|---|---|---|
| **Vioscale score** | 52.9 (67% (medium)) | 63.3 (54% (medium)) |
| activity.commits_last_30d | 3 | 100 |
| adoption.dependent_repos | 109,950 | 54,477 |
| adoption.github_stars | 35,689 | 81,366 |
| deployment.options | - | `{"self_hosted":true}` |
| description.long | Koa is a lightweight backend framework for Node.js that emphasizes simplicity and developer experience through modern async/await middleware composition, without bundling dependencies. | A framework for creating stand-alone, production-grade Spring applications with minimal configuration. Features embedded web servers (Tomcat, Jetty, Undertow), opinionated starter dependencies, automatic configuration, and production-ready features such as metrics and health checks. |
| features.capabilities | `{"language":"JavaScript","api_routes":true}` | `{"language":"Java","api_routes":true,"server_components":true}` |
| language.primary | JavaScript | Java |
| license.spdx | MIT | Apache-2.0 |
| pricing.model | commercial | commercial |
| release.cadence_days | 16 | - |
| release.history | `[{"url":"https://github.com/koajs/koa/releases/tag/v3.2.1","date":"2026-05-21T07:26:16Z","type":"stable","version":"v3.2.1"},{"url":"https://github.com/koajs/koa/releases/tag/v3.2.0","date":"2026-03-28T05:41:00Z","type":"stable","version":"v3.2.0"},{"url":"https://github.com/koajs/koa/releases/tag/v3.1.2","date":"2026-02-25T13:37:14Z","type":"stable","version":"v3.1.2"},{"url":"https://github.com/koajs/koa/releases/tag/v2.16.4","date":"2026-02-25T13:38:28Z","type":"stable","version":"v2.16.4"},{"url":"https://github.com/koajs/koa/releases/tag/v3.1.1","date":"2025-10-27T04:27:58Z","type":"stable","version":"v3.1.1"},{"url":"https://github.com/koajs/koa/releases/tag/v3.1.0","date":"2025-10-26T13:17:47Z","type":"stable","version":"v3.1.0"},{"url":"https://github.com/koajs/koa/releases/tag/v3.0.3","date":"2025-10-18T14:22:52Z","type":"stable","version":"v3.0.3"},{"url":"https://github.com/koajs/koa/releases/tag/v2.16.3","date":"2025-10-18T14:36:52Z","type":"stable","version":"v2.16.3"},{"url":"https://github.com/koajs/koa/releases/tag/v3.0.2","date":"2025-10-17T06:56:28Z","type":"stable","version":"v3.0.2"},{"url":"https://github.com/koajs/koa/releases/tag/v2.16.2","date":"2025-07-30T00:02:36Z","type":"stable","version":"v2.16.2"},{"url":"https://github.com/koajs/koa/releases/tag/v3.0.1","date":"2025-07-27T07:38:40Z","type":"stable","version":"v3.0.1"},{"url":"https://github.com/koajs/koa/releases/tag/v3.0.0","date":"2025-04-28T00:40:12Z","type":"stable","version":"v3.0.0"},{"url":"https://github.com/koajs/koa/releases/tag/3.0.0-alpha.5","date":"2025-04-06T21:43:50Z","type":"stable","version":"3.0.0-alpha.5"},{"url":"https://github.com/koajs/koa/releases/tag/v2.16.1","date":"2025-04-06T21:41:44Z","type":"stable","version":"v2.16.1"},{"url":"https://github.com/koajs/koa/releases/tag/3.0.0-alpha.4","date":"2025-03-21T07:37:11Z","type":"prerelease","version":"3.0.0-alpha.4"},{"url":"https://github.com/koajs/koa/releases/tag/2.16.0","date":"2025-02-27T05:56:03Z","type":"stable","version":"2.16.0"},{"url":"https://github.com/koajs/koa/releases/tag/2.15.4","date":"2025-02-12T14:12:11Z","type":"stable","version":"2.15.4"},{"url":"https://github.com/koajs/koa/releases/tag/3.0.0-alpha.2","date":"2024-11-04T05:10:02Z","type":"prerelease","version":"3.0.0-alpha.2"}]` | `[{"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/spring-projects/spring-boot/releases/tag/v4.1.0-M1","date":"2026-01-22T17:13:17Z","type":"prerelease","version":"v4.1.0-M1"}]` |
| reliability.status_page | yes | yes |
| security.disclosure_policy | - | yes |
| security.scorecard | 6.2 | 6.8 |
| security.vulnerabilities | `{"count":6,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=koa&per_page=100","last_12m":2,"max_severity":"CRITICAL"}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.springframework.boot%3Aspring-boot-starter-data-redis&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Web Frameworks)

| Capability | Koa | Spring Boot |
|---|:--:|:--:|
| **Core** |  |  |
| Rendering model | - | - |
| File-based routing | - | - |
| Language | JavaScript | Java |
| **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 2026-09-01T16:34:49.841Z. "-" = undocumented, not absent.*