How to Delete All Facebook Messages on Messenger at Once (2026 Guide)

Short answer: Facebook Messenger has no Delete all or Select all button, so on its own you delete conversations one at a time from each chat's menu. To delete many at once in desktop Chrome, Messenger Cleaner lets you tick the conversations you want and runs Facebook's own delete (or archive) flow for each one in your signed-in tab.

Either way, deleting a conversation removes your copy only. The other person keeps theirs; only Delete for everyone (formerly Unsend) on an individual message you sent removes it from their side.

How to delete all messages on Messenger manually

Meta's supported flow handles one conversation at a time. On a computer:

1. Open Facebook Messenger and sign in.
2. Hover over a conversation in the chat list.
3. Click its three-dot (…) menu.
4. Choose Delete chat.
5. Confirm Delete chat in the dialog.
6. Repeat for every other conversation you want gone.

On iPhone or Android, press and hold a conversation in the Chats list, tap Delete, and confirm. Meta documents the current behavior in its Messenger deletion help; button names and menu positions vary slightly by device and interface version.

This is fine for a handful of chats. For hundreds of old conversations it means hundreds of menus and confirmations, which is why people search for a bulk option.

How to bulk delete Facebook messages in Chrome

Messenger Cleaner adds the multi-select step Messenger is missing. It works from a Chrome side panel next to your Messenger tab.

1. Install Messenger Cleaner from the Chrome Web Store.
2. Open Facebook Messenger in Chrome and sign in.
3. Open the extension's side panel from the toolbar icon.
4. Select the conversations you want to remove.
5. Choose Delete (or Archive, if you may want them back).
6. Review the selection and confirm. Deletion always asks explicitly, because it can be permanent.
7. Keep the Messenger tab visible while the run proceeds. You can watch progress and stop at any time; if you switch away, the run pauses and continues when you return.

The free plan includes 10 successful delete or archive actions per day, and restoring archived chats is always free, so you can test the workflow on a small selection first. A paid upgrade removes the daily limit — see pricing for current options.

Processing happens in your browser. CleanMySocial does not receive the contents of your conversations.

Mass delete Facebook messages: what actually gets removed

“Delete all Facebook messages” can mean three different things:

• Delete conversations from your inbox. The chats disappear from your account; the other participants keep their copies. This is what manual deletion and Messenger Cleaner both do.
• Archive conversations. The inbox looks clean, but the history is kept and can be restored.
• Delete a sent message for everyone. One message you sent is removed for everyone in that chat. This is a per-message action, not a bulk one.

Messenger Cleaner works at the conversation level: delete, archive, or restore whole chats. It does not unsend individual message bubbles for everyone. For the full comparison, read Delete vs. Archive vs. Unsend on Messenger.

Be wary of services that ask for your Facebook password, a message export, or pasted session cookies. A cleanup tool does not need a separate copy of your private conversations to click the controls already in your browser.

Facebook delete all messages for both sides?

There is no way to erase an entire conversation from the other person's inbox. Deleting a chat clears your side only. Even deleting your Facebook account does not necessarily remove messages you sent from your friends' inboxes, as Meta explains in its account-deletion documentation. Treat any tool promising to wipe someone else's Messenger history with suspicion.

Delete all Messenger messages on iPhone or Android

The Messenger mobile app has no select-all for ordinary conversations either; you delete chats one by one with press-and-hold. Chrome extensions do not run inside the Messenger app, so Messenger Cleaner is a desktop Chrome workflow. For a few chats, mobile is enough; for a large inbox, desktop selection is faster.

Back up important chats before a mass cleanup

Bulk deletion processes many conversations, which also makes a wrong selection costlier. Before a large run:

1. Open Facebook's Accounts Center.
2. Go to Your information and permissions → Download your information.
3. Select your Facebook profile and include Messages.
4. Choose a date range and request the export.
5. Download the archive when it is ready and check it contains what you need.

Keep the archive private — it holds message text, names, and attachments. If you are unsure about a chat, archive it instead of deleting it.

FAQ

Is there a way to delete all Facebook messages at once?

Not with a native button. Messenger only deletes one conversation at a time. A browser extension like Messenger Cleaner can select many conversations and repeat Facebook's delete flow for each one.

Will the other person be notified when I delete a conversation?

No. Deleting your copy of a conversation is an inbox action; it does not notify the other participants.

Can I delete Messenger messages older than a certain date?

Facebook has no “delete everything before this date” control, and Messenger Cleaner selects conversations rather than filtering messages by timestamp. Review which chats you want to keep before you start.

Does deleting Marketplace chats cancel anything?

No. Marketplace conversations live in Messenger and can be deleted like other chats, but that does not delete a listing, change an order, or remove the buyer's or seller's copy.

Can I recover a deleted Messenger conversation?

Do not count on it. Archived conversations can be restored (Messenger Cleaner restores archived chats for free); permanently deleted ones cannot be reconstructed from the extension.

Does Messenger Cleaner upload my messages?

No. It works through your existing signed-in Messenger tab, and conversation contents are not sent to CleanMySocial.

Bottom line

Messenger has no delete-all button on desktop or mobile, so the manual route is one chat at a time. For a bigger cleanup, Messenger Cleaner lets you select conversations and run the confirmed delete or archive flow in desktop Chrome. Back up what matters, try a small selection first, and remember that deleting clears your side, not everyone else's.