# Ratpack

Set of Java libraries for building scalable HTTP applications on the JVM.

STUB. This software has no release or pre-release in four years, or its project site no longer shows it, so it is not part of the register, not counted and not indexed. It will be checked again.

Source: https://findsoftware.frbit.cloud/ratpack/
Last reviewed: 2026-10-26
Listed since: 2026-10-26

## Record

### Links

- home: https://ratpack.io
- repository: https://github.com/ratpack/ratpack
- docs: https://ratpack.io/manual/current/
- x: https://twitter.com/ratpackweb

### Identity

- status: stub
- maintainer: The Ratpack project
- maintainerType: unknown
- parent: unknown
- firstRelease: 2014
- hqCountry: unknown

### Kind

- category: library
- hosting: java
- language: java
- runtime: jvm
- runtimeMin: jvm 8
- basedOn: netty

### Content

- contentStore: not applicable
- databases: not applicable
- adminUi: not applicable
- headlessApi: not applicable
- templating: not applicable
- i18n: not applicable

### Rendering and deploy

- runsAs: always-on
- renderingModes: not applicable
- installMethod: Gradle plugin io.ratpack.ratpack-java with io.ratpack:ratpack-core from Maven Central

### License

- licenseModel: open-source
- license: Apache-2.0

### Releases

- currentMajor: 1
- latestReleaseDate: 2021-06-29

### Adoption

- githubStargazers: 1947
- packagistDownloads: not applicable
- npmWeeklyDownloads: not applicable
- contributors: 136
- pluginCount: unknown
- packagistMonthlyDownloads: unknown
- ecosystemsMonthlyDownloads: unknown
- httpArchiveSites: unknown
- wordpressActiveInstalls: unknown
- dependentRepos: unknown
- dependentPackages: unknown

### Sources

- urls: https://ratpack.io/ (read 2026-10-26)
- urls: https://api.github.com/repos/ratpack/ratpack (read 2026-10-26)
- urls: https://ratpack.io/ (read 2026-10-26)
- maintainer: https://ratpack.io/manual/current/about-the-project.html (read 2026-10-26)
- language: https://api.github.com/repos/ratpack/ratpack (read 2026-10-26)
- category: https://ratpack.io/ (read 2026-10-26)
- basedOn: https://raw.githubusercontent.com/ratpack/ratpack/master/README.md (read 2026-10-26)
- runtime: https://ratpack.io/manual/current/heroku.html (read 2026-10-26)
- installMethod: https://ratpack.io/manual/current/gradle.html (read 2026-10-26)
- installMethod: https://ratpack.io/manual/current/all.html (read 2026-10-26)
- runsAs: https://ratpack.io/manual/current/launching.html (read 2026-10-26)
- license: https://raw.githubusercontent.com/ratpack/ratpack/master/LICENSE.txt (read 2026-10-26)
- licenseModel: https://ratpack.io/ (read 2026-10-26)
- firstRelease: https://repo1.maven.org/maven2/io/ratpack/ratpack-core/0.9.0/ (read 2026-10-26)
- currentMajor: https://api.github.com/repos/ratpack/ratpack/releases/latest (read 2026-10-26)
- latestReleaseDate: https://api.github.com/repos/ratpack/ratpack/releases/latest (read 2026-10-26)
- githubStargazers: https://api.github.com/repos/ratpack/ratpack (read 2026-10-26)
- contributors: https://api.github.com/repos/ratpack/ratpack/contributors?per_page=1 (read 2026-10-26)
- runtimeMin: https://ratpack.io/manual/current/all.html (read 2026-10-26)

## Notes

Ratpack is a set of Java libraries for building HTTP applications on the JVM. It is built on the Netty event-driven networking engine. A Ratpack application starts an embedded server, which listens for HTTP traffic on a configured port. An application can be a single Groovy script or a Java project built with Gradle plugins, and the libraries are published to Maven Central under the io.ratpack group.

## Worth knowing

The homepage describes Ratpack as a foundation and not an all-encompassing framework. A later release line has so far been published only as release candidates.

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Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Attributes are recorded, never scored; absent means unknown.
Credit, in full: FindSoftware, CC BY 4.0