Codemod
Free tierCompiler-aware code migration and maintenance platform for enterprise scale
Free tier available·Technical·API available·Open source
Key strengths
Compiler-aware code transformations for high accuracyScales across millions of lines of code with up to 90% AI cost reductionCross-language support for any framework, library, or SDKOrchestration layer for coordinating migrations across teams and repos2M+ codemod runs with adoption by leading frameworks
Free tier + paid plans
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- Dependency upgrades at scale — Automate breaking-change migrations (e.g., React 18→19, Node.js 18→20) across millions of lines of code with AST-level accuracy.
- AI agent tooling — Expose Codemod's MCP server to coding agents (Claude, Codex, Cursor) so they can perform reliable, compiler-aware codebase transformations autonomously.
- Multi-repo campaign orchestration — Coordinate migration PRs across dozens of repositories and teams with centralized deadline tracking and progress visibility.
- Security and compliance remediation — Automatically patch insecure patterns, end-of-life packages, and compliance violations across the entire software fleet.
- Internationalization (i18n) automation — Extract and migrate string literals across large repos without manual engineering effort, as demonstrated by Zapier's org-wide i18n rollout.
- Tech debt reduction — Schedule and execute continuous modernization tasks as background campaigns, keeping the codebase evergreen without interrupting product delivery.