How to Delete All Chat Histories in Signal Private Messenger

Signal is widely regarded as one of the most secure and private messaging apps available. It uses state-of-the-art end-to-end encryption to keep your conversations secure. However, there may be times when you want to delete your chat history in Signal for privacy reasons. Here is a step-by-step guide on how to delete all chat histories in Signal on both mobile and desktop.

Why You Might Want to Delete Chat History

Here are some common reasons for deleting your chat history in Signal:

  • Enhanced privacy and security: Deleting chat histories reduces the sensitive data stored on your device that could be compromised in case your phone is lost/stolen. It also allows you to start fresh with increased privacy.
  • Save storage space: Your chat histories, especially for groups, can take up significant storage space on your phone over time. Deleting them can free up storage space.
  • Comply with data retention policies: Some companies and organizations require deleting work communications after a defined retention period. Deleting Signal histories allows complying with such policies.

How to Delete Chat History on Mobile

Deleting all Signal chat histories on your Android or iOS mobile app is simple:

On Android

  1. Open the Signal app on your Android phone.
  2. Tap on your profile picture in the top-left.
  3. Go to Settings > Chats > Clear Chat History.
  4. Tap on Delete Everything to confirm and delete all chat histories.

On iPhone

  1. Launch the Signal app on your iPhone.
  2. Tap your profile picture in the top-left corner.
  3. Go to Data and Storage > Manage Storage > Clear Message History.
  4. Tap Delete to confirm clearing all chat histories.

And that’s it! All your chat histories in Signal will be deleted from your mobile device.

How to Delete Chats on Desktop

Here are the steps to delete your Signal chats on a Windows or Mac desktop app:

  1. Launch the Signal desktop app.
  2. Right click on the chat you want to delete in the left pane.
  3. Click on Delete from the menu.
  4. Confirm deletion by clicking OK when prompted.

Repeat steps 2-4 to delete additional chats.

Note: There is no option yet to delete all chats in one go from Signal’s desktop app. You have to delete them one by one.

What Happens When You Delete Chat Histories

It is important to understand what happens when you delete chat histories in Signal:

  • The chat database is deleted from your local device only.
  • Recipients will still have your chat history on their devices.
  • Deleting history on your device does not delete it from recipients’ devices.
  • For one-on-one chats, you can manually delete individual messages for all participants.
  • You can enable disappearing messages for future messages to be deleted automatically after a set time.

So in summary, deleting Signal chat history only removes it from your device, not other participants’ devices. For complete privacy, you have to manually delete messages or use disappearing messages.

Tips for Managing Chat History

Here are some tips to better manage and delete your chat history in Signal:

  • Enable disappearing messages: Set all new chats to automatically delete messages after 24 hours or 7 days for privacy.
  • Delete old chats: Periodically review all your Signal chats and delete old or unnecessary threads you no longer need.
  • Delete messages for all: If you accidentally sent a sensitive message in a one-on-one chat, long press on it and delete for both parties.
  • Use multiple devices: Having Signal installed across devices allows seamlessly deleting messages from all linked devices.
  • Backup chats: Take encrypted backups occasionally before deleting histories for memories or records.


I hope this detailed guide gives you a good understanding of how to delete all chat histories in Signal app on both mobile and desktop platforms. Let me know if you have any other questions!