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Ask Moddy about your code, and it does the heavy lifting: finding relevant recipes, running them on Lossless Semantic Trees (LSTs), analyzing the results, and summarizing insights you can act on.
The Lossless Semantic Tree is rich, semantic model of your codebase—including type information—giving Moddy the context to understand systems at scale.
Over 5,000 deterministic OpenRewrite recipes serve as modular tools for Moddy to work on your code with precision and repeatability.
Moddy supports a flexible BYOM setup, allowing integration with your preferred large language model such as Anthropic, OpenAI, Gemini, and Llama.
Moddy transforms massive codebases with safe, repeatable actions that scale across repositories.
Ask in natural language and Moddy searches across repositories to surface the right OpenRewrite recipes—with clear summaries of what each will do.
Apply recipes safely across repos. Moddy executes the changes, extracts relevant code data, and makes it simple to review results and open PRs.
Go beyond transformations. Moddy summarizes outputs, spots patterns, and generates data visualizations to give you a deeper understanding of your codebase
Just ask. Moddy upgrades frameworks, fixes vulnerabilities, removes dead code, and automates migrations safely—freeing developer capacity without sacrificing control.
Gain deep visibility into your codebase. Moddy surfaces and summarizes patterns, dependencies, and architectural relationships—empowering smarter decisions and reducing risk across systems.
Manage and secure sprawling, multi-repo codebases with confidence. Apply consistent standards, align with architectural goals, and streamline change across fleets of applications.
Tim te Beek teams up with Claude to challenge Sam Snyder. The rules? A shared recipe idea, no pre-written code, and a fixed time limit to bring it all to life
See how teams use OpenRewrite and Claude Code to quickly build and test migration recipes — accelerating modernization and reducing manual effort across large codebases.
Billions of lines of legacy code are slowing innovation. Watch this webinar featuring a panel from Google, Meta, DX and Moderne to learn how AI is transforming the way enterprises maintain, remediate and modernize massive codebases.
