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Get fast, repeatable source code refactoring

OpenRewrite (founded and managed by Moderne) is an automated refactoring ecosystem that enables developers to effectively eliminate technical debt within their repositories. It consists of an auto-refactoring engine that runs prepackaged refactoring recipes for common framework migrations, security fixes, and stylistic consistency tasks.

OpenRewrite is offered under a tiered licensing model. See Licensing for how the framework, parsers, and recipes are licensed.

Start with the quickstart guide and let OpenRewrite handle the boring parts of software development for you. We also welcome you to join our community Slack.

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  1. rewrite rewrite Public

    Automated mass refactoring of source code.

    Java 3.8k 577

  2. rewrite-testing-frameworks rewrite-testing-frameworks Public

    OpenRewrite recipes that perform common Java testing migration tasks.

    Java 100 105

  3. rewrite-maven-plugin rewrite-maven-plugin Public

    OpenRewrite's Maven plugin.

    Java 189 91

  4. rewrite-spring rewrite-spring Public

    OpenRewrite recipes for Spring projects.

    Java 403 153

  5. rewrite-gradle-plugin rewrite-gradle-plugin Public

    OpenRewrite's Gradle plugin.

    Java 88 48

  6. rewrite-docs rewrite-docs Public

    Stores the markdown documents used to generate docs.openrewrite.org

    HTML 55 78

Repositories

Showing 10 of 77 repositories
  • rewrite Public

    Automated mass refactoring of source code.

    openrewrite/rewrite's past year of commit activity
    Java 3,763 Apache-2.0 577 215 69 Updated Oct 1, 2026
  • rewrite-docs Public

    Stores the markdown documents used to generate docs.openrewrite.org

    openrewrite/rewrite-docs's past year of commit activity
    HTML 55 Apache-2.0 78 2 1 Updated Oct 1, 2026
  • rewrite-testing-frameworks Public

    OpenRewrite recipes that perform common Java testing migration tasks.

    openrewrite/rewrite-testing-frameworks's past year of commit activity
    Java 100 105 32 (1 issue needs help) 12 Updated Sep 30, 2026
  • rewrite-cucumber-jvm Public

    OpenRewrite recipes for CucumberJVM.

    openrewrite/rewrite-cucumber-jvm's past year of commit activity
    Java 5 3 2 (1 issue needs help) 0 Updated Sep 30, 2026
  • rewrite-recipe-markdown-generator Public

    Utility that generates OpenRewrite recipe documentation in markdown format for all recipes on the classpath.

    openrewrite/rewrite-recipe-markdown-generator's past year of commit activity
    Kotlin 9 Apache-2.0 12 3 0 Updated Sep 30, 2026
  • rewrite-prethink Public

    Trusted context for LLM coding agents

    openrewrite/rewrite-prethink's past year of commit activity
    Java 10 3 0 1 Updated Sep 30, 2026
  • rewrite-migrate-java Public

    OpenRewrite recipes for migrating to newer versions of Java.

    openrewrite/rewrite-migrate-java's past year of commit activity
    Java 156 129 38 16 Updated Sep 30, 2026
  • rewrite-spring Public

    OpenRewrite recipes for Spring projects.

    openrewrite/rewrite-spring's past year of commit activity
    Java 403 153 54 13 Updated Sep 30, 2026
  • rewrite-static-analysis Public

    OpenRewrite recipes for identifying and fixing static analysis issues.

    openrewrite/rewrite-static-analysis's past year of commit activity
    Java 63 112 114 (4 issues need help) 31 Updated Sep 30, 2026
  • rewrite-gradle-plugin Public

    OpenRewrite's Gradle plugin.

    openrewrite/rewrite-gradle-plugin's past year of commit activity
    Java 88 48 16 1 Updated Sep 30, 2026