This task can be performed using Meishi
Privacy-first contacts app with P2P sync and data sovereignty
Best product for this task
Meishi
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Meishi solves the broken contact management problem through decentralized architecture and user-controlled data.

What to expect from an ideal product
- Meishi lets you import contacts from Google, iCloud, or a CSV file in one step, so nothing gets left behind during the switch.
- Your contact data lives on your device and syncs peer-to-peer, meaning no third-party server ever holds your address book.
- Meishi preserves custom fields, notes, and tags during migration, unlike most decentralized tools that strip metadata on import.
- If you have duplicate contacts across platforms, Meishi detects and merges them automatically before the migration completes.
- Once migrated, you own your data outright and can export it anytime without asking permission from any platform or provider.
