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Get fast, repeatable source code refactoring

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

OpenRewrite is Apache2 licensed and maintained by Moderne, the company that scales the use of OpenRewrite recipes across large codebases and multiple repositories.

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 2.7k 403

  2. rewrite-spring rewrite-spring Public

    OpenRewrite recipes for Spring projects.

    Java 296 91

  3. rewrite-testing-frameworks rewrite-testing-frameworks Public

    OpenRewrite recipes that perform common Java testing migration tasks.

    Java 84 85

  4. rewrite-maven-plugin rewrite-maven-plugin Public

    OpenRewrite's Maven plugin.

    Java 155 82

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

    OpenRewrite's Gradle plugin.

    Java 69 42

  6. rewrite-docs rewrite-docs Public

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

    TypeScript 43 69

Repositories

Showing 10 of 67 repositories
  • rewrite Public

    Automated mass refactoring of source code.

    openrewrite/rewrite’s past year of commit activity
    Java 2,675 Apache-2.0 403 375 (9 issues need help) 58 Updated Apr 27, 2025
  • rewrite-analysis Public

    OpenRewrite recipes for data flow analysis.

    openrewrite/rewrite-analysis’s past year of commit activity
    Java 11 Apache-2.0 10 8 0 Updated Apr 27, 2025
  • rewrite-testing-frameworks Public

    OpenRewrite recipes that perform common Java testing migration tasks.

    openrewrite/rewrite-testing-frameworks’s past year of commit activity
    Java 84 85 51 (6 issues need help) 4 Updated Apr 27, 2025
  • 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 5 Apache-2.0 5 0 0 Updated Apr 27, 2025
  • rewrite-rewrite Public

    OpenRewrite recipes for OpenRewrite Recipes.

    openrewrite/rewrite-rewrite’s past year of commit activity
    Java 0 0 0 0 Updated Apr 27, 2025
  • rewrite-micronaut Public

    OpenRewrite recipes for Micronaut.

    openrewrite/rewrite-micronaut’s past year of commit activity
    Java 13 Apache-2.0 4 6 0 Updated Apr 27, 2025
  • rewrite-migrate-java Public

    OpenRewrite recipes for migrating to newer versions of Java.

    openrewrite/rewrite-migrate-java’s past year of commit activity
    Java 119 86 52 (7 issues need help) 10 Updated Apr 27, 2025
  • openrewrite/rewrite-dropwizard’s past year of commit activity
    Java 0 Apache-2.0 1 0 1 Updated Apr 27, 2025
  • rewrite-spring Public

    OpenRewrite recipes for Spring projects.

    openrewrite/rewrite-spring’s past year of commit activity
    Java 296 91 80 (3 issues need help) 2 Updated Apr 27, 2025
  • rewrite-jenkins Public

    OpenRewrite recipes to continuously modernize Jenkins plugins.

    openrewrite/rewrite-jenkins’s past year of commit activity
    Java 11 8 22 (2 issues need help) 2 Updated Apr 27, 2025