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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 3.7k 568

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

    OpenRewrite recipes that perform common Java testing migration tasks.

    Java 100 104

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

    OpenRewrite's Maven plugin.

    Java 188 92

  4. rewrite-spring rewrite-spring Public

    OpenRewrite recipes for Spring projects.

    Java 402 149

  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 3,707 Apache-2.0 568 219 80 Updated Sep 11, 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 100 104 29 (1 issue needs help) 15 Updated Sep 11, 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 60 108 117 (4 issues need help) 34 Updated Sep 11, 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 155 127 38 18 Updated Sep 11, 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 Sep 10, 2026
  • rewrite-spring Public

    OpenRewrite recipes for Spring projects.

    openrewrite/rewrite-spring's past year of commit activity
    Java 402 149 51 10 Updated Sep 10, 2026
  • rewrite-maven-plugin Public

    OpenRewrite's Maven plugin.

    openrewrite/rewrite-maven-plugin's past year of commit activity
    Java 188 92 13 5 Updated Sep 10, 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 13 3 0 Updated Sep 9, 2026
  • rewrite-recipe-bom Public

    Align version numbers for all OpenRewrite maintained recipe modules

    openrewrite/rewrite-recipe-bom's past year of commit activity
    18 Apache-2.0 7 1 0 Updated Sep 9, 2026
  • rewrite-all Public

    Gathers recipes which depend on recipes from many other OpenRewrite-maintained recipe modules

    openrewrite/rewrite-all's past year of commit activity
    Java 7 Apache-2.0 6 0 0 Updated Sep 9, 2026