How to open a WhatsApp backup on another computer

What you are opening

Kaption Backups keeps one password-encrypted backup file of your WhatsApp chats (a .kbak file) in a folder you choose. The file holds every chat of the account: messages, contacts, groups, labels and voice-note transcripts. On paid plans it can also hold photos, videos, voice notes and documents.

A backup opens on any computer with Kaption and its password. The phone isn't needed.

Step 1: get the file to the other computer

The simplest way is a shared folder. If the backup folder is inside iCloud Drive, Google Drive or OneDrive, give the other person access to that folder with the cloud's own sharing settings. The file syncs to their computer like any other file.

You can also copy the file to an external drive.

Kaption does not send the file anywhere. Kaption's servers never receive it.

Step 2: open it in Kaption

On the other computer, install the Kaption extension for Chrome or Edge, or the Kaption desktop app for Mac and Windows. Then:

1. Open Backups and choose View backup.
2. Choose the .kbak file, or drop it on the page.
3. Type the backup's password.

The backup opens read-only in a new tab, laid out like WhatsApp. The file is decrypted in memory on that computer. Nothing is uploaded, and nothing is sent to WhatsApp.

Whose WhatsApp is linked there matters

• A backup of another WhatsApp account is only viewed. It is listed as another backup and nothing is mixed.
• A backup of the same WhatsApp account can be added to the backup on that computer. Kaption adds only what is missing. Nothing is duplicated or removed.

In the desktop app, the viewer can remember a backup's password with Touch ID or the computer's keychain.

Step 3: review

The reviewer can:

• Search every chat and every voice-note transcript at once
• Filter to groups, chats with media or chats with transcripts
• Open photos, play videos and voice notes, and open or save documents when they are in the backup

They can't change anything, reply or send anything. The backup is read-only.

Sharing it safely

The password is the key. Anyone with the file and the password can read every chat in it. So:

• Share the password only with people who should see all the chats. A backup covers the whole account, not one chat.
• Send the password by a different route than the file. Use a password manager's sharing feature rather than the same email or chat.
• Limit the folder. Use your cloud's sharing settings to decide who can reach it.
• Change the password when someone no longer needs access. From then on, only the new password opens the backup file. Exports made before keep their own password.

There is no password recovery. If it is lost, nobody can open the backup, not even Kaption.

If the reviewer needs only one conversation, it may be better to share just that chat. Kaption can save a single chat as a web page or CSV. See WhatsApp backup vs Export chat.

For how firms use this, see WhatsApp backup for doctors and clinics and WhatsApp backup for sales teams.

FAQ

Can I open a WhatsApp backup on a different computer?

Yes. Install Kaption on that computer, choose View backup, pick the .kbak file and type its password.

Does the other computer need my phone?

No. The backup opens with its password. If a different WhatsApp account is linked on that computer, your backup is shown read-only and kept separate.

Can the reviewer change or delete messages?

No. The viewer is read-only, and nothing is sent to WhatsApp.

Can I open a backup on a Mac if it was made on Windows?

Yes. The backup file opens in the Kaption desktop app for Mac and Windows, and in the extension in Chrome or Edge.

Is the file safe in a shared folder?

It is encrypted with your password, so the folder alone isn't enough to read it. Still, share the folder and the password only with people who should see the chats.