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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 189 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 3,701 Apache-2.0 568 214 89 Updated Sep 9, 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) 12 Updated Sep 9, 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 60 106 116 (4 issues need help) 33 Updated Sep 8, 2026
  • rewrite-jackson Public

    OpenRewrite recipes for modernizing, upgrading, applying best practices for the fasterxml Jackson serialization/deserialization libraries

    openrewrite/rewrite-jackson's past year of commit activity
    Java 5 Apache-2.0 13 0 1 Updated Sep 8, 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 8, 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 17 Updated Sep 8, 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 7, 2026
  • openrewrite/migration-engineering-with-openrewrite's past year of commit activity
    Java 0 0 0 4 Updated Sep 7, 2026
  • rewrite-build-gradle-plugin Public

    Common build logic for building OpenRewrite and recipe jars.

    openrewrite/rewrite-build-gradle-plugin's past year of commit activity
    Java 4 Apache-2.0 9 0 1 Updated Sep 7, 2026
  • rewrite-github-actions Public

    OpenRewrite recipes for performing GitHub action hygiene and migration tasks.

    openrewrite/rewrite-github-actions's past year of commit activity
    Java 1 10 29 (1 issue needs help) 0 Updated Sep 7, 2026