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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 413

  2. rewrite-spring rewrite-spring Public

    OpenRewrite recipes for Spring projects.

    Java 300 92

  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 156 82

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

    OpenRewrite's Gradle plugin.

    Java 70 42

  6. rewrite-docs rewrite-docs Public

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

    TypeScript 44 71

Repositories

Showing 10 of 67 repositories
  • rewrite Public

    Automated mass refactoring of source code.

    openrewrite/rewrite’s past year of commit activity
    Java 2,701 Apache-2.0 413 372 (7 issues need help) 64 Updated May 11, 2025
  • rewrite-docs Public

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

    openrewrite/rewrite-docs’s past year of commit activity
    TypeScript 44 Apache-2.0 71 8 (1 issue needs help) 0 Updated May 11, 2025
  • rewrite-maven-plugin Public

    OpenRewrite's Maven plugin.

    openrewrite/rewrite-maven-plugin’s past year of commit activity
    Java 156 82 20 2 Updated May 10, 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 120 88 55 (7 issues need help) 10 Updated May 10, 2025
  • rewrite-static-analysis Public

    OpenRewrite recipes for identifying and fixing static analysis issues.

    openrewrite/rewrite-static-analysis’s past year of commit activity
    Java 40 68 145 (5 issues need help) 7 Updated May 10, 2025
  • rewrite-liberty Public

    OpenRewrite recipes to migrate to the IBM WebSphere Liberty.

    openrewrite/rewrite-liberty’s past year of commit activity
    Java 0 Apache-2.0 5 0 0 Updated May 9, 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 55 (6 issues need help) 6 Updated May 9, 2025
  • gh-automation Public

    Shared GitHub Actions workflows which are used by multiple repositories under the OpenRewrite GitHub organization.

    openrewrite/gh-automation’s past year of commit activity
    1 Apache-2.0 3 1 1 Updated May 9, 2025
  • rewrite-spring Public

    OpenRewrite recipes for Spring projects.

    openrewrite/rewrite-spring’s past year of commit activity
    Java 300 92 79 (3 issues need help) 2 Updated May 8, 2025
  • rewrite-gradle-tooling-model Public

    A model for extracting semantic information out of Gradle build files necessary for refactoring them.

    openrewrite/rewrite-gradle-tooling-model’s past year of commit activity
    Java 3 Apache-2.0 5 0 0 Updated May 8, 2025

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