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Supported languages

As of January 2025, OpenRewrite supports:

Programming languages​

  • Java
  • Kotlin
  • Groovy
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Moderne offers support for additional languages and frameworks (such as JavaScript, C#, Python, Ruby, COBOL, etc.). Consider checking that out if OpenRewrite doesn't meet your needs.

If your project is open-source, you can use the Moderne CLI to run many of the Moderne exclusive recipes against your project.

Data formats​

  • HCL
  • JSON
  • Properties
  • Protobuf
  • TOML
  • XML
  • YAML

Build tools​

Frameworks​

Framework migration recipes are developed through collaboration between the OpenRewrite team, the original framework authors, and the wider OSS community. Each recipe in our recipe catalog includes a list of contributing authors.

Many different frameworks are supported such as (but not limited to):

  • Spring
  • Quarkus
  • Micronaut
  • Jakarta