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Code migrations at lightning speed

Codemod gives engineering teams the insights and automation needed to confidently drive large-scale migrations, upgrades, and refactors.

Trusted by thousands of progressive software teams.

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Visibility for engineering leaders

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Track migrations, refactors, and upgrades across your entire codebase. Turn code-level data into planning insights and initiative visibility.

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Automate sweeping code changes​‍​‍‌‍‌​‍‌‍‍‌‌‍‌‌‍‍‌‌‍‍​‍​‍​‍‍​‍​‍‌​‌‍​‌‌‍‍‌‍‍‌‌‌​‌‍‌​‍‍‌‍‍‌‌‍​‍​‍​‍​​‍​‍‌‍‍​‌​‍‌‍‌‌‌‍‌‍​‍​‍​‍‍​‍​‍​‍‌‍‌‌‍​‌‌‍‍‌‍​‌‌‍‌‌‍‌‌​‍‌‍‍‌‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‌‍‌‌‌‍‌​‌‍‍‌‌‌​​‍‌‍‌‌‍‌‍‌​‌‍‌‌​‌‌​​‌​‍‌‍‌‌‌​‌‍‌‌‌‍‍‌‌​‌‍​‌‌‌​‌‍‍‌‌‍‌‍‍​‍‌‍‍‌‌‍‌​​‌​​​‌‍​‌​‍​​​‌‍​‌​​​‍​​‌‌​‍‌‌‍‌​‌‍‌‍​​​‌‍​‍‌​‌​​‍​‌‍​‌‍‌‍​‍‌​‍‌​‌‍​​‌‍‌‌​‍��​‌‍​​​​‌​​‌‌‍​​‍‌​‍​‌‍‌‍‌‍​​‌​​‍​‌​‍‌‌​‌‍‌‌​​‌‍‌‌​‌‌​​‌‍​‌‌‍‌‌‍‌‌​‍‌​​‌‍​‌‌‌​‌‍‍​​‌‌​‌‍‌‌‌‍​‌‌​‌‍‍‌‌‍‌‍‍‌​​‍‌‌​‌‌‌​​‍‌‌‌‍‍‌‍‌‌‌‍‌​‍‌‌​​‌​‌​​‍‌‌​​‌​‌​​‍‌‌​​‍​​‍​‌‍‌​‍‌​‌‌‌‌​‍‌​​‍‌​‍‌‌‍​‌‍‍‌​​​​‌​‍‌‌​​‍​​‍​‍‌‌​‌‌‌​‌​​‍‍‌‍‌‍‌‍‌‌‌‍​‌‌‌​‌‌‌‌​‍‌‍‌‌‌​​‍‌‌​‌‌‌​​‍‌‌‌‍‍‌‍‌‌‌‍‌​‍‌‌​​‌​‌​​‍‌‌​​‌​‌​​‍‌‌​​‍​​‍​‍‌‌‍​‍‌‍​‌​​‌‍‌‍​​‍‌‍​‍​​​‌‍​‍​​‍​​​​‌‍​‍‌‌​​‍​​‍​‍‌‌​‌‌‌​‌​​‍‍‌​‌‍‍‌‍‍‌‌​​‌​​‌‍‌‌‌‌​​‌‍​‍‌‍​‌‌​‌‍‌‌‌‌‌‌‌​‍‌‍​​‌​‍‌‌​​‍‌​‌‍‌‍‌‌‍​‌‌‍‍‌‍​‌‌‍‌‌‍‌‌​‍‌‍‌‍‍‌‌‍‌​​‌​​​‌‍​‌​‍​​​‌‍​‌​​​‍​​‌‌​‍‌‌‍‌​‌‍‌‍​​​‌‍​‍‌​‌​​‍​‌‍​‌‍‌‍​‍‌​‍‌​‌‍​​‌‍‌‌​‍‌​‌‍​​​​‌​​‌‌‍​​‍‌​‍​‌‍‌‍‌‍​​‌​​‍​‌​‍‌‍‌‌​‌‍‌‌​​‌‍‌‌​‌‌​​‌‍​‌‌‍‌‌‍‌‌​‍‌‍‌​​‌‍​‌‌‌​‌‍‍​​‌‌​‌‍‌‌‌‍​‌‌​‌‍‍‌‌‍‌‍‍‌​​‍‌‌​‌‌‌​​‍‌‌‌‍‍‌‍‌‌‌‍‌​‍‌‌​​‌​‌​​‍‌‌​​‌​‌​​‍‌‌​​‍​​‍​‌‍‌​‍‌​‌‌‌‌​‍‌​​‍‌​‍‌‌‍​‌‍‍‌​​​​‌​‍‌‌​​‍​​‍​‍‌‌​‌‌‌​‌​​‍‍‌‍‌‍‌‍‌‌‌‍​‌‌‌​‌‌‌‌​‍‌‍‌‌‌​​‍‌‌​‌‌‌​​‍‌‌‌‍‍‌‍‌‌‌‍‌​‍‌‌​​‌​‌​​‍‌‌​​‌​‌​​‍‌‌​​‍​​‍​‍‌‌‍​‍‌‍​‌​​‌‍‌‍​​‍‌‍​‍​​​‌‍​‍​​‍​​​​‌‍​‍‌‌​​‍​​‍​‍‌‌​‌‌‌​‌​​‍‍‌​‌‍‍‌‍‍‌‌​​‌​​‌‍‌‌‌‌​​‍‌‍‌‍‍‌‌​‌​‌​‌​‍‌‍​‌‌‍‌‍‌‌​​‌​‍​‍‌‌

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Generate, test, and apply codemods at scale with the help of Codemod AI. Eliminate manual effort across thousands of files.

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Orchestrate fleet-wide transformations

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Break down large changes into safe, trackable steps—across teams, services, and repos.

Sweeping changes—without the chaos.

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Innovate fearlessly, no matter the code size! Automate framework migrations, API upgrades, cleanups, refactors, and more.

Accelerate Migrations with Collective Intelligence

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Codemod gets smarter with every contribution—so your migrations get faster, safer, and easier over time.

  • React/19/Migration Recipe

    This recipe is a set of codemods that will fix some of React 19 breaking changes.

  • Nuxt/4/Migration Recipe

    This recipe is a set of codemods that will help migrate to Nuxt 4.

  • Msw/2/Upgrade Recipe

    This recipe is a set of codemods that will upgrade your project from using msw v1 to v2.

  • Pnpm/Catalog

    • Performs search across all packages in pnpm workspace.
    • If there are more than 2 packages with same dependency - it will move dependency to catalog.
    • If there are multiple versions of dependency - codemod will prompt to choose whether to move to catalog or not (in this case latest version will be picked).
    • Automatically updates version in packageManager field in package.json to 9.5.0 (if it is set and lower than 9.5.0).
    • Runs pnpm install after migration.
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Shipping love, faster.

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Codemod users have saved over hundred years of time, freeing up brainpower for building the next big thing on secure, performant and modern codebases.

Codemod helps us plan, automate, and track migrations that were previously too challenging even to begin.

Kaelig Deloumeau-Prigent

Principal Engineer at Netlify

Codemod made our Next.js migration to the App Router possible. No other service compares.

Peer Richelsen

Co-founder & CEO at Cal.com

Migrations involving small changes can take hours to implement and validate, Codemod makes that minutes.

Max Leiter

Software Engineer at Vercel

Join our community of code migration experts.

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