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Replit Adds One-Click Migration to Clerk Auth

ReplitView original changelog

Replit launched a guided, Agent-driven migration path that moves eligible apps from Replit Auth to Clerk Auth while preserving existing user accounts and data. Developers can trigger the migration by asking Agent directly or through the Users & Auth panel, and Agent handles moving account data before updating sign-in code so returning users retain access. The feature complements Replit's earlier rollout of enterprise SSO via Clerk, giving teams still on the original auth system a supported upgrade path.

Key Takeaways

  • Replit now offers a guided migration path from Replit Auth to Clerk Auth for eligible apps.
  • Replit Agent handles the transition automatically, moving account data before updating the app's sign-in code.
  • Returning users keep access to their existing accounts and data after migration completes.
  • Migration can be triggered by asking Agent directly or via the Users & Auth panel in the Project Editor.
  • The process only touches authentication code — existing database schema and other app data are left untouched.
  • The tool follows Replit's early-August enterprise SSO launch via Clerk, giving developers still on Replit Auth a path to Clerk's broader identity platform.

Moving Existing Apps Off Replit Auth

Replit introduced a guided migration path that lets developers move an eligible app from Replit Auth to Clerk Auth without losing existing users. Replit Agent handles the transition automatically, moving account data before it updates the app's sign-in code, so returning users keep access to the accounts and data they already have.

How the Migration Works

Developers can kick off the migration two ways: by simply asking Agent in the main conversation to migrate the app from Replit Auth to Clerk, or by opening the Tools panel, selecting Users & Auth in the Project Editor, and choosing "Update now" from the introductory banner. In both cases, Agent proposes a dedicated migration task for the developer to review before it runs.

Agent only touches the app's authentication code during the process — it does not modify the app's existing database schema or other data, so tables and relationships outside of auth remain untouched. Migration time varies with app size: Replit says the process typically takes Agent between 10 minutes and an hour to complete, with the underlying data transfer itself taking a few minutes for small apps and up to a couple of hours for apps with large user bases.

Why It Matters

This follows Replit's early-August rollout of enterprise SSO support via Clerk (covering providers like Okta and Microsoft Entra ID). That earlier update let new and existing Clerk-integrated apps add enterprise sign-on; this migration tool closes the loop for developers still running the original Replit Auth system, giving them a supported path to Clerk's more feature-rich identity platform without a risky manual rewrite or losing their existing user base in the process.