Manifest V2 to V3 Converter | Free Chrome Extension Migration Tool

Automatically convert your Chrome extension from Manifest V2 to V3. Handles permission migration, service workers, CSP updates, and API changes. Free online MV3 conversion tool.

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Features

  • Automatic manifest.json conversion
  • Permission migration to new model
  • Background scripts to service workers
  • Content Security Policy updates
  • Preview changes before downloading

Free to use. No signup required. All processing happens in your browser.

Frequently Asked Questions

What changes does the converter handle?
It converts background scripts to service workers, migrates permissions to the new model, updates Content Security Policy, and handles Chrome API changes between MV2 and MV3.
Is my manifest.json data safe?
Yes. All processing happens in your browser. Your manifest data is never uploaded to any server.
When is the MV2 deprecation deadline?
Google is phasing out Manifest V2 extensions. Check the Chrome developer blog for the latest timeline. We recommend migrating as soon as possible.

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