Fix Base44 export failures and migrate your app off the platform
Base44's export feature does not always produce a fully self-contained project. Exported code may be missing edge function logic, have hardcoded Base44 API URLs, or rely on platform-specific runtime behavior that does not exist outside Base44. This makes migration more complex than a simple download-and-deploy.
Error messages you might see
Error: fetch failed - connect ECONNREFUSED (Base44 API endpoint unreachable)ReferenceError: __BASE44_API__ is not definedModule not found: Can't resolve '@base44/sdk'TypeError: Cannot read properties of undefined (reading 'invoke')Why this happens in AI-generated code
Edge function logic not included in export
Base44 runs server-side logic in managed edge functions. The export may include client-side code but omit the edge function source, leaving your app with API calls that point to endpoints that no longer exist.
Hardcoded Base44 API references
Exported code often contains references to Base44's internal API URLs or SDK packages. Once you leave the platform, these calls fail because the backend is no longer accessible.
Database and auth tied to Base44 infrastructure
If your app uses Base44's built-in database or auth, the export will not include that data or those services. You need to recreate them with your own database (e.g., Supabase, PostgreSQL) and auth provider.
Platform-specific component wrappers
Base44 may wrap standard React components in proprietary wrappers that handle routing, data fetching, or permissions. These wrappers break when extracted from the platform context.
How to fix it
Inventory what the export includes and what it is missing
Before trying to run the exported code, read through the file structure and note every import that references Base44 packages or APIs. List the edge functions, database tables, and auth flows your app uses. This gives you a clear picture of the migration work.
Replace Base44 SDK calls with standard alternatives
Swap @base44/sdk imports with direct fetch calls or a Supabase client. For each edge function, recreate the logic as a Next.js API route, Express endpoint, or Supabase edge function.
Set up your own database and migrate data
Create a new database (Supabase or any PostgreSQL provider), define tables to match your Base44 schema, and export/import your data. Update all database queries in the codebase to use the new connection.
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Frequently asked questions
Will my Base44 app continue to work while I migrate?
Yes, as long as you maintain your Base44 account. Your app keeps running on the platform until you redirect your domain to the new version. You can migrate incrementally without downtime.
How long does a Base44 migration typically take?
It depends on the complexity. A simple CRUD app with a few pages might take a few days. Apps with multiple edge functions, auth flows, and database tables can take one to two weeks of focused development work.
Can I keep using Base44's database after exporting?
Generally no. Once you leave the platform, API access to Base44's managed services may be restricted or unsupported. Plan to migrate your data to your own database as part of the export process.
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