# Fiber vs Micronaut

| Attribute | Fiber | Micronaut |
|---|---|---|
| **Vioscale score** | 65.7 (67% (medium)) | 62.2 (78% (high)) |
| activity.commits_last_30d | 100 | 76 |
| adoption.dependent_repos | 5,223 | 1,305 |
| adoption.github_stars | 40,088 | 6,421 |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | An open-source Go framework built on the Fasthttp HTTP engine, providing familiar Express-like routing and middleware patterns for building web APIs and servers with minimal overhead. | A modern Java framework designed to reduce startup time and memory overhead through compile-time optimization rather than runtime reflection, providing built-in support for dependency injection, aspect-oriented programming, cloud-native patterns, and microservice infrastructure. |
| features.capabilities | `{"language":"Go","api_routes":true,"file_routing":false,"server_components":true}` | `{"language":"Java, Groovy, Kotlin","api_routes":true}` |
| integrations.count | - | 19 |
| integrations.list | - | `[{"name":"GraalVM"},{"name":"Netty"},{"name":"Jackson"},{"name":"Gradle"},{"name":"RabbitMQ"},{"name":"gRPC"},{"name":"Consul"},{"name":"Eureka"},{"name":"Elasticsearch"},{"name":"Redis"},{"name":"Flyway"},{"name":"Logback"},{"name":"SDKMAN"},{"name":"PostgreSQL"},{"name":"MySQL"},{"name":"Oracle"},{"name":"MariaDB"},{"name":"SQL Server"},{"name":"H2"}]` |
| language.primary | Go | Java |
| license.spdx | MIT | Apache-2.0 |
| market.availability | - | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | - | `{"cli":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://gofiber.io/","retrievedAt":"2026-08-13T22:40:15.243Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://micronaut.io/","retrievedAt":"2026-08-13T23:07:33.979Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | commercial |
| pricing.price_level | free | free |
| pricing.transparent | - | yes |
| release.cadence_days | 26 | 1 |
| release.history | `[{"url":"https://github.com/gofiber/fiber/releases/tag/v3.5.0","date":"2026-08-13T07:24:30Z","type":"stable","version":"v3.5.0"},{"url":"https://github.com/gofiber/fiber/releases/tag/v2.52.15","date":"2026-08-12T15:03:17Z","type":"stable","version":"v2.52.15"},{"url":"https://github.com/gofiber/fiber/releases/tag/v2.52.14","date":"2026-07-06T06:30:09Z","type":"stable","version":"v2.52.14"},{"url":"https://github.com/gofiber/fiber/releases/tag/v3.4.0","date":"2026-07-02T07:39:44Z","type":"stable","version":"v3.4.0"},{"url":"https://github.com/gofiber/fiber/releases/tag/v3.3.0","date":"2026-05-22T07:15:22Z","type":"stable","version":"v3.3.0"},{"url":"https://github.com/gofiber/fiber/releases/tag/v3.2.0","date":"2026-04-25T10:53:02Z","type":"stable","version":"v3.2.0"},{"url":"https://github.com/gofiber/fiber/releases/tag/v2.52.13","date":"2026-04-25T13:07:17Z","type":"stable","version":"v2.52.13"},{"url":"https://github.com/gofiber/fiber/releases/tag/v3.1.0","date":"2026-02-24T20:30:38Z","type":"stable","version":"v3.1.0"},{"url":"https://github.com/gofiber/fiber/releases/tag/v2.52.12","date":"2026-02-24T20:40:25Z","type":"stable","version":"v2.52.12"},{"url":"https://github.com/gofiber/fiber/releases/tag/v3.0.0","date":"2026-02-02T18:22:38Z","type":"stable","version":"v3.0.0"},{"url":"https://github.com/gofiber/fiber/releases/tag/v2.52.11","date":"2026-01-31T15:56:24Z","type":"stable","version":"v2.52.11"},{"url":"https://github.com/gofiber/fiber/releases/tag/v3.0.0-rc.3","date":"2025-11-19T15:42:23Z","type":"prerelease","version":"v3.0.0-rc.3"},{"url":"https://github.com/gofiber/fiber/releases/tag/v2.52.10","date":"2025-11-19T14:21:16Z","type":"stable","version":"v2.52.10"},{"url":"https://github.com/gofiber/fiber/releases/tag/v3.0.0-rc.2","date":"2025-09-29T11:15:51Z","type":"prerelease","version":"v3.0.0-rc.2"},{"url":"https://github.com/gofiber/fiber/releases/tag/v3.0.0-rc.1","date":"2025-08-26T07:28:06Z","type":"prerelease","version":"v3.0.0-rc.1"},{"url":"https://github.com/gofiber/fiber/releases/tag/v3.0.0-beta.5","date":"2025-07-20T14:49:17Z","type":"prerelease","version":"v3.0.0-beta.5"},{"url":"https://github.com/gofiber/fiber/releases/tag/v2.52.9","date":"2025-07-20T13:43:53Z","type":"stable","version":"v2.52.9"},{"url":"https://github.com/gofiber/fiber/releases/tag/v2.52.8","date":"2025-05-22T07:01:43Z","type":"stable","version":"v2.52.8"},{"url":"https://github.com/gofiber/fiber/releases/tag/v3.0.0-beta.4","date":"2024-12-31T17:00:22Z","type":"prerelease","version":"v3.0.0-beta.4"},{"url":"https://github.com/gofiber/fiber/releases/tag/v2.52.6","date":"2024-12-31T17:12:37Z","type":"stable","version":"v2.52.6"}]` | `[{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.12","date":"2026-08-21T08:14:23Z","type":"stable","version":"v5.1.12"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.11","date":"2026-08-17T07:53:29Z","type":"stable","version":"v5.1.11"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.0.7","date":"2026-07-23T08:40:46Z","type":"stable","version":"v5.0.7"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.10","date":"2026-07-22T13:17:31Z","type":"stable","version":"v5.1.10"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.9","date":"2026-07-21T11:40:52Z","type":"stable","version":"v5.1.9"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.8","date":"2026-07-20T12:04:10Z","type":"stable","version":"v5.1.8"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.7","date":"2026-07-17T15:05:49Z","type":"stable","version":"v5.1.7"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.0.6","date":"2026-07-15T13:01:39Z","type":"stable","version":"v5.0.6"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.6","date":"2026-07-13T10:07:03Z","type":"stable","version":"v5.1.6"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v3.10.10","date":"2026-07-13T08:59:47Z","type":"stable","version":"v3.10.10"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.5","date":"2026-07-09T11:33:40Z","type":"stable","version":"v5.1.5"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.4","date":"2026-07-08T13:21:09Z","type":"stable","version":"v5.1.4"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v4.10.26","date":"2026-07-08T07:46:02Z","type":"stable","version":"v4.10.26"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.0.5","date":"2026-07-07T07:23:53Z","type":"stable","version":"v5.0.5"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.3","date":"2026-06-29T12:22:10Z","type":"stable","version":"v5.1.3"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.0.4","date":"2026-06-29T09:56:51Z","type":"stable","version":"v5.0.4"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v3.10.9","date":"2026-06-29T09:06:16Z","type":"stable","version":"v3.10.9"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.2","date":"2026-06-19T12:51:22Z","type":"stable","version":"v5.1.2"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.1","date":"2026-06-17T16:27:02Z","type":"stable","version":"v5.1.1"},{"url":"https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.0","date":"2026-06-16T14:25:45Z","type":"stable","version":"v5.1.0"}]` |
| security.disclosure_policy | yes | yes |
| security.scorecard | 7 | 7.2 |
| security.vulnerabilities | `{"count":10,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fgofiber%2Ffiber%2Fv2&per_page=100","last_12m":3,"max_severity":"CRITICAL"}` | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=io.micronaut%3Amicronaut-inject&per_page=100","last_12m":1,"max_severity":"LOW"}` |

## Capabilities (Web Frameworks)

| Capability | Fiber | Micronaut |
|---|:--:|:--:|
| **Core** |  |  |
| Rendering model | - | - |
| File-based routing | ✗ | - |
| Language | Go | Java, Groovy, Kotlin |
| **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 2026-09-01T17:20:52.567Z. "-" = undocumented, not absent.*