WhatsApp Group Contacts Export: This will download the members of group with their phone number, whatsapp name and if contact is stored on phone

readme.md

WhatsApp Group Contacts Export (Personal Project)

This will download the members of group with their phone number, whatsapp name and if contact is stored on phone, it will export the name as well.

Go to web.whatsapp.com. Copy-paste the code into your browser console.

(async () => {
  const contactFinder = new ContactFinder("YOUR GROUP SEARCH STRING OR GROUP TITLE");
  const members = await contactFinder.getGroupMembers(); // This will return a JS Map Object
  console.log(members);

  // OR 
  await contactFinder.downloadMembersAsCSV(); // This will download the contacts as CSV
})();

This code uses data stored in indexDB by WhatsApp and search through indexDb collections to collect the required data

Side Note : This code snippet is shared only for educational purpose and the code might not be maintained anymore. Developer is not responsible for any Privacy/Security voilations. Also no data is being sent to anywhere, everything is stored and fetched from local browser tab.

WhatsAppGroupContactExport.js

class ContactFinder {
  #db;
  #chatToFind;
  #dbName = "model-storage";
  #chatsCol = "chat";
  #contactCol = "contact";
  #groupCol = "participant";

  constructor(chatGroupName) {
    this.#chatToFind = chatGroupName;
  }

  async openConnection() {
    if (!this.#db) {
      const dbName = this.#dbName;
      this.#db = await new Promise((resolve, reject) => {
        let request = indexedDB.open(dbName);
        request.onerror = (event) => {
          reject(event);
        };
        request.onsuccess = (event) => {
          resolve(event.target.result);
        };
      });
    }
    return this.#db;
  }

  async #promisifyCol(collection, query, count) {
    const db = await this.openConnection();
    return new Promise((resolve, reject) => {
      const request = db.transaction(collection).objectStore(collection).getAll(query, count);

      request.onerror = (event) => {
        reject(event);
      };
      request.onsuccess = (event) => {
        resolve(event.target.result);
      };
    });
  }

  async #getChats() {
    const allChats = await this.#promisifyCol(this.#chatsCol);
    const chatToFind = this.#chatToFind;
    return allChats.filter((chat) => {
      return chat.name && chat.name.includes(chatToFind);
    });
  }

  async #getGroups() {
    const chats = (await this.#getChats()).map((chat) => chat.id);
    const allGroups = await this.#promisifyCol(this.#groupCol);

    return allGroups.filter((group) => {
      return group.groupId && chats.includes(group.groupId);
    });
  }

  async #getGroupParticipants() {
    const groups = await this.#getGroups();
    const map = new Map();

    groups.forEach((group) => {
      group.participants.forEach((par) => {
        const num = par.replace("@c.us", "");
        map.set(num, num);
      });
    });

    return map;
  }

  async #getContacts() {
    return this.#promisifyCol(this.#contactCol);
  }

  async getGroupMembers() {
    const members = await this.#getGroupParticipants();
    const contacts = await this.#getContacts();

    contacts.forEach((contact) => {
      var num;
      if (contact.phoneNumber) {
        num = contact.phoneNumber.split("@")[0];
      } else if (contact.id) {
        num = contact.id.split("@")[0];
      }
      if (num && members.get(num)) {
        members.set(num, {
          phoneNum: num,
          name: contact.name,
          pushname: contact.pushname,
        });
      }
    });
    return members;
  }

  async downloadMembersAsCSV() {
    const members = await this.getGroupMembers();
    let csvContent = "data:text/csv;charset=utf-8,";

    for (const [key, value] of members.entries()) {
      const values = [value.phoneNum];

      if (value.name) values.push(value.name);
      if (value.pushname) values.push(value.pushname);

      let row = values.join(",");
      csvContent += row + "\r\n";
    }
    var link = document.createElement("a");
    link.setAttribute("href", encodeURI(csvContent));
    link.setAttribute("download", "my_data.csv");
    document.body.appendChild(link); // Required for FF

    link.click();
  }
}

Is it possible to get the date when he joined the group? I want to make a filter between dates to identify new contacts.

I assume it's possible Get Outlook for Android<https://aka.ms/AAb9ysg>

…

________________________________ From: LavieNroseee ***@***.***> Sent: Monday, March 6, 2023 10:03:33 PM To: LavieNroseee ***@***.***> Cc: Author ***@***.***> Subject: Re: mzahidriaz/WhatsAppGroupContactExport.js @LavieNroseee commented on this gist.

________________________________ Is it possible to get the date when he joined the group? I want to make a filter between dates to identify new contacts. — Reply to this email directly, view it on GitHub<https://gist.github.com/4c5404fe24e3c6a00d7bd82b3ca328e7#gistcomment-4493317> or unsubscribe<https://github.com/notifications/unsubscribe-auth/AAVJ62WG6CP6X5EVTNMDMNLW2YKGLBFKMF2HI4TJMJ2XIZLTSKBKK5TBNR2WLJDHNFZXJJDOMFWWLK3UNBZGKYLEL52HS4DFQKSXMYLMOVS2I5DSOVS2I3TBNVS3W5DIOJSWCZC7OBQXE5DJMNUXAYLOORPWCY3UNF3GS5DZVRZXKYTKMVRXIX3UPFYGLK2HNFZXIQ3PNVWWK3TUUZ2G64DJMNZZDAVEOR4XAZNEM5UXG5FFOZQWY5LFVEYTEMJSGMYDONJZU52HE2LHM5SXFJTDOJSWC5DF>. You are receiving this email because you authored the thread. Triage notifications on the go with GitHub Mobile for iOS<https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android<https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

I have this error: let row = values.join(","); is not a function

Sorry, I don't understand what do I have to do with WhatsAppGroupContactExport.js file. Or just by pasting the first code it must work?

I created this variant for a bookmarket to ease use, this is the bookmarket Get Contacts:

And this is the code:

// https://www.jspacker.org/

var _contacts = [];
class ContactFinder {
  #db;
  #chatToFind;
  #dbName = "model-storage";
  #chatsCol = "chat";
  #contactCol = "contact";
  #groupCol = "participant";

  constructor(chatGroupName) {
    this.#chatToFind = chatGroupName;
  }

  async openConnection() {
    if (!this.#db) {
      const dbName = this.#dbName;
      this.#db = await new Promise((resolve, reject) => {
        let request = indexedDB.open(dbName);
        request.onerror = (event) => {
          reject(event);
        };
        request.onsuccess = (event) => {
          resolve(event.target.result);
        };
      });
    }
    return this.#db;
  }

  async #promisifyCol(collection, query, count) {
    const db = await this.openConnection();
    return new Promise((resolve, reject) => {
      const request = db.transaction(collection).objectStore(collection).getAll(query, count);

      request.onerror = (event) => {
        reject(event);
      };
      request.onsuccess = (event) => {
        resolve(event.target.result);
      };
    });
  }

  async #getChats() {
    const allChats = await this.#promisifyCol(this.#chatsCol);
    const chatToFind = this.#chatToFind;
    return allChats.filter((chat) => {
      return chat.name && chat.name.includes(chatToFind);
    });
  }

  async #getGroups() {
    const chats = (await this.#getChats()).map((chat) => chat.id);
    const allGroups = await this.#promisifyCol(this.#groupCol);

    return allGroups.filter((group) => {
      return group.groupId && chats.includes(group.groupId);
    });
  }

  async #getGroupParticipants() {
    const groups = await this.#getGroups();
    const map = new Map();

    groups.forEach((group) => {
      group.participants.forEach((par) => {
        const num = par.replace("@c.us", "");
        map.set(num, num);
      });
    });

    return map;
  }

  async #getContacts() {
    return this.#promisifyCol(this.#contactCol);
  }

  async getGroupMembers() {
    const members = await this.#getGroupParticipants();
    const contacts = await this.#getContacts();

    contacts.forEach((contact) => {
      var num;
      if (contact.phoneNumber) {
        num = contact.phoneNumber.split("@")[0];
      } else if (contact.id) {
        num = contact.id.split("@")[0];
      }
      if (num && members.get(num)) {
        var m = {
          phoneNum: num,
          name: contact.name,
          pushname: contact.pushname,
        };
        members.set(num, m);
        _contacts.push(m);
      }
    });
    return members;
  }


  async downloadMembersAsCSV() {
    const members = await this.getGroupMembers();
    let csvContent = "data:text/csv;charset=utf-8,";
        csvContent += '"Phone","Name","Push Name"\r\n';

    for (const [key, value] of members.entries()) {
      const values = [
        value.phoneNum || "",
        value.name || "",
        value.pushname || "",
      ];
      const row = values.map((value) => `"${value}"`).join(",");
      csvContent += row + "\r\n";
    }
    console.log(csvContent);

    const encodedUri = encodeURI(csvContent);
    var link = document.createElement("a");
    link.setAttribute("href", encodedUri);
    link.setAttribute("download", "WhatsAppContacts.csv");
    document.body.appendChild(link); // Required for FF
    link.click();
  }



}

(async () => {
  const contactFinder = new ContactFinder(window.prompt("Nombre del grupo:"));
  const members = await contactFinder.getGroupMembers(); // This will return a JS Map Object
  await contactFinder.downloadMembersAsCSV(); // This will download the contacts as CSV
  console.log(_contacts);
})();

Very Nice @herduin

@herduin Thanks for the idea.
I have created an extension using this tool
https://sandbox.self.li/bookmarklet-to-extension/
It's working fine.

Thank you @herduin

Congrats! @herduin

thank you @herduin. Works Great.

Very Nice @herduin

I created this variant for a bookmarket to ease use, this is the bookmarket Get Contacts:

And this is the code:

// https://www.jspacker.org/

var _contacts = [];
class ContactFinder {
  #db;
  #chatToFind;
  #dbName = "model-storage";
  #chatsCol = "chat";
  #contactCol = "contact";
  #groupCol = "participant";

  constructor(chatGroupName) {
    this.#chatToFind = chatGroupName;
  }

  async openConnection() {
    if (!this.#db) {
      const dbName = this.#dbName;
      this.#db = await new Promise((resolve, reject) => {
        let request = indexedDB.open(dbName);
        request.onerror = (event) => {
          reject(event);
        };
        request.onsuccess = (event) => {
          resolve(event.target.result);
        };
      });
    }
    return this.#db;
  }

  async #promisifyCol(collection, query, count) {
    const db = await this.openConnection();
    return new Promise((resolve, reject) => {
      const request = db.transaction(collection).objectStore(collection).getAll(query, count);

      request.onerror = (event) => {
        reject(event);
      };
      request.onsuccess = (event) => {
        resolve(event.target.result);
      };
    });
  }

  async #getChats() {
    const allChats = await this.#promisifyCol(this.#chatsCol);
    const chatToFind = this.#chatToFind;
    return allChats.filter((chat) => {
      return chat.name && chat.name.includes(chatToFind);
    });
  }

  async #getGroups() {
    const chats = (await this.#getChats()).map((chat) => chat.id);
    const allGroups = await this.#promisifyCol(this.#groupCol);

    return allGroups.filter((group) => {
      return group.groupId && chats.includes(group.groupId);
    });
  }

  async #getGroupParticipants() {
    const groups = await this.#getGroups();
    const map = new Map();

    groups.forEach((group) => {
      group.participants.forEach((par) => {
        const num = par.replace("@c.us", "");
        map.set(num, num);
      });
    });

    return map;
  }

  async #getContacts() {
    return this.#promisifyCol(this.#contactCol);
  }

  async getGroupMembers() {
    const members = await this.#getGroupParticipants();
    const contacts = await this.#getContacts();

    contacts.forEach((contact) => {
      var num;
      if (contact.phoneNumber) {
        num = contact.phoneNumber.split("@")[0];
      } else if (contact.id) {
        num = contact.id.split("@")[0];
      }
      if (num && members.get(num)) {
        var m = {
          phoneNum: num,
          name: contact.name,
          pushname: contact.pushname,
        };
        members.set(num, m);
        _contacts.push(m);
      }
    });
    return members;
  }


  async downloadMembersAsCSV() {
    const members = await this.getGroupMembers();
    let csvContent = "data:text/csv;charset=utf-8,";
        csvContent += '"Phone","Name","Push Name"\r\n';

    for (const [key, value] of members.entries()) {
      const values = [
        value.phoneNum || "",
        value.name || "",
        value.pushname || "",
      ];
      const row = values.map((value) => `"${value}"`).join(",");
      csvContent += row + "\r\n";
    }
    console.log(csvContent);

    const encodedUri = encodeURI(csvContent);
    var link = document.createElement("a");
    link.setAttribute("href", encodedUri);
    link.setAttribute("download", "WhatsAppContacts.csv");
    document.body.appendChild(link); // Required for FF
    link.click();
  }



}

(async () => {
  const contactFinder = new ContactFinder(window.prompt("Nombre del grupo:"));
  const members = await contactFinder.getGroupMembers(); // This will return a JS Map Object
  await contactFinder.downloadMembersAsCSV(); // This will download the contacts as CSV
  console.log(_contacts);
})();

@herduin good stuff.. This worked for me but only 520 out of 850 wa group contacts were successfully exported.. is there a fix?

@benh1979 the original script which I shared is downloading all the contacts, I tried with 1025 members and it's working fine

@rlandaburu this issue has been fixed.
Thank you for reporting.

Is there an easy way to iterate over all groups? 😅

Hello, can u put a small video or text explaining how to use it ? cause i tried but didn't succeed
I've tried using devtools in chrome and putting the code in the console, a file was downloaded but with 0 data
Thanks