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HTML

              
                    <h1><b style="color: red">Contact Picker</b> API Live Demo.</h1>
    <p>
      Please note that <b>Contact Picker API </b> is only for Android Mobile Web
      and it requires chrome version greater than 80. <br />
      It also requires the application to be run in https protocol. It won't run
      on <b>localhost and desktop</b>.
    </p>
    <button onclick="openContactPicker()">Open my phone contacts</button>
              
            
!

CSS

              
                body {
        width: 500px;
        margin: auto;
        padding: 40px;
        line-height: 20px;
      }
      button {
        background-color: red;
        padding: 20px;
        font-size: 20px;
        border: 0;
        color: #fff;
        border-radius: 10px;
      }
              
            
!

JS

              
                function openContactPicker() {
      const supported = "contacts" in navigator && "ContactsManager" in window;

      if (supported) {
        getContacts();
      } else {
        alert(
          "Contact list API not supported!. Only for android mobile chrome and chrome version > 80"
        );
      }
    }
    async function getContacts() {
      const props = ["name", "email", "tel"];
      const opts = { multiple: true };

      try {
        const contacts = await navigator.contacts.select(props, opts);
        alert(JSON.stringify(contacts));
      } catch (err) {
        alert(err);
      }
    }
              
            
!
999px

Console