Skip to content

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.

Pinned Loading

  1. rewrite rewrite Public

    Automated mass refactoring of source code.

    Java 2.9k 444

  2. rewrite-spring rewrite-spring Public

    OpenRewrite recipes for Spring projects.

    Java 319 102

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

    OpenRewrite recipes that perform common Java testing migration tasks.

    Java 84 88

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

    OpenRewrite's Maven plugin.

    Java 159 84

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

    OpenRewrite's Gradle plugin.

    Java 72 45

  6. rewrite-docs rewrite-docs Public

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

    TypeScript 45 73

Repositories

Showing 10 of 69 repositories
  • 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 85 161 (11 issues need help) 11 Updated Jul 21, 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 125 96 50 (4 issues need help) 10 Updated Jul 21, 2025
  • rewrite Public

    Automated mass refactoring of source code.

    openrewrite/rewrite’s past year of commit activity
    Java 2,868 Apache-2.0 444 352 (6 issues need help) 68 Updated Jul 21, 2025
  • rewrite-logging-frameworks Public

    OpenRewrite recipes for assisting with Java logging migration tasks.

    openrewrite/rewrite-logging-frameworks’s past year of commit activity
    Java 30 28 16 2 Updated Jul 21, 2025
  • rewrite-hibernate Public

    OpenRewrite recipes for Hibernate ORM.

    openrewrite/rewrite-hibernate’s past year of commit activity
    Java 8 9 7 (2 issues need help) 0 Updated Jul 21, 2025
  • rewrite-maven-plugin Public

    OpenRewrite's Maven plugin.

    openrewrite/rewrite-maven-plugin’s past year of commit activity
    Java 159 84 22 3 Updated Jul 21, 2025
  • 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 3 Apache-2.0 2 0 0 Updated Jul 20, 2025
  • rewrite-csharp Public

    OpenRewrite CSharp runtime and LST models

    openrewrite/rewrite-csharp’s past year of commit activity
    C# 5 2 0 2 Updated Jul 20, 2025
  • rewrite-rewrite Public

    OpenRewrite recipes for OpenRewrite Recipes.

    openrewrite/rewrite-rewrite’s past year of commit activity
    Java 0 0 0 2 Updated Jul 19, 2025
  • rewrite-docs Public

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

    openrewrite/rewrite-docs’s past year of commit activity
    TypeScript 45 Apache-2.0 73 9 (1 issue needs help) 0 Updated Jul 19, 2025