Phone Number Cleaner

Your contacts, in international format (E.164) - compatible with WhatsApp, Signal, Telegram

Is your contact book a mess of formats? Local numbers, missing area codes, anarchic spaces, duplicates... Phone Number Cleaner puts things in order in a single gesture, and makes your numbers compatible with all modern messaging services (WhatsApp, Signal, Telegram, iMessage).

How does it work?

  1. 1 Grant access to your contacts (read and write only — nothing leaves your device).
  2. 2 Choose your default country code (e.g. +33 for France) and, if required, a specific group of contacts to process.
  3. 3 Start cleaning. The app detects local numbers, adds the international dialing code and normalizes to E.164 format.
  4. 4 Check the result and validate. An integrated UNDO function lets you go back at any time.

All processing is done locally. No data passes through our servers. No cloud, no account required. Your contacts never leave your device.

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100% local

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Zero tracker

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No third parties