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How to Message Someone Without Sharing Your Phone Number

Signal lets you start a chat through a username, QR code, or link without sharing your number. Here’s how to set it up and what other messaging options reveal.
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You can start a one-to-one conversation on Signal without giving the other person your phone number: hide your number in Signal’s privacy settings, then share your exact username, its QR code, or its unique link. Signal still requires a phone number to register, so this hides your number from a conversation partner; it does not make your account anonymous or phone-free.

Message someone privately with a Signal username

Signal’s username feature is designed to let you initiate contact without sharing your number. Signal does not offer a searchable username directory, so the other person needs the exact username, QR code, or unique link you share. Signal says the unique URL does not include the username text. See Signal’s guide to phone-number privacy and usernames.

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  1. In Signal, open Settings > Privacy > Phone Number.
  2. Set Who can see my number to Nobody. This controls whether people you chat with can see your number.
  3. Set Who can find me by my number to Nobody. This prevents people from finding your account by searching a number they already know. With this setting, a person needs your exact username to connect.
  4. Open your profile settings to create or view your username. Share the exact username, its QR code, or its unique link with the person you want to contact.
  5. Check the message request before accepting it. If you need to confirm someone’s identity, compare Signal safety numbers through a separate channel; a username alone does not prove who is contacting you.

Signal’s two phone-number controls are all-or-nothing, not settings you can tailor for individual contacts. Hiding your number while making your account undiscoverable by number also means people who know your number may not find you through it. You will need to give intended contacts your username or link instead.

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What the other person can see—and what may connect your chats

A username is a way to start contact, not the public profile name that identifies you in the conversation. After you accept a message request, the other person may see your profile name. If you already have a conversation with someone through your phone number and later connect through a username-started chat, Signal may merge those chats, allowing the person to associate both contact methods with the same account. Signal explains these behaviors in its username and phone-number privacy guide.

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How Signal compares with Messages, Google Messages, and email masking

Method What it can keep private Important limitation
Signal username Lets you initiate a chat without sharing your phone number, when the recipient uses Signal and you share a username, QR code, or link. Signal still requires a phone number to register; the username does not verify identity. Signal Support.
Apple Messages (including iMessage) Apple says iMessage content is end-to-end encrypted in transit. The phone number or email address used in Messages is shown to people you contact; encryption does not hide that identifier. Apple Messages privacy.
Google Messages profile sharing You can control sharing of your profile name and photo; Google says this feature does not share your email address. Google Messages periodically verifies device and phone-number information to enable services and help people connect. Profile controls are not a number-free identity. Google Messages profile help.
Apple Hide My Email Creates random email addresses that forward messages to your personal inbox. This is an email relay, not an SMS alias; it works only when the conversation can happen by email. Apple Hide My Email documentation.

Choose the option that fits the conversation

  • You want to chat in an app without giving out your number: Use Signal’s username and set both phone-number privacy controls to Nobody.
  • You need to send ordinary SMS or use iMessage: Do not treat Apple Messages as a way to conceal your contact identifier; Apple says the number or email used is shown to people you contact.
  • You only need to keep your email address private: Hide My Email can relay email, but it cannot replace a phone number for carrier texting.
  • You use Google Messages: Its profile-sharing controls can limit name and photo exposure, but they do not establish a way to message without a phone number.

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