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

Short answer: Facebook Messenger does not have a native Select all button for ordinary inbox conversations. On Facebook and in the Messenger mobile app, you normally delete chats one at a time. Messenger Cleaner adds a selection workflow in Chrome and processes the conversations you confirm inside your signed-in Facebook tab.

There is an important limit: deleting a conversation clears your copy of that chat. It does not erase the other participant's inbox. Removing something from both sides requires Delete for everyone (previously called Unsend in some interfaces), and that applies to individual messages you sent rather than an entire conversation.

First decide what you want Messenger to remove

People use “delete all Messenger messages” to describe three different jobs:

• Delete conversations from your inbox. The chats disappear from your account, while the other participants keep their copies.
• Archive conversations. The inbox looks cleaner, but the history is retained and can be restored later.
• Delete a sent message for everyone. One message you sent is removed from the conversation for the participants, subject to the controls Facebook currently provides.

For a full explanation of those outcomes, read Delete vs. Archive vs. Unsend on Messenger. For a large inbox cleanup, the rest of this guide focuses on deleting or archiving whole conversations.

How to delete a Messenger conversation manually

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

1. Open Facebook Messenger and sign in.
2. Find the conversation in the chat list.
3. Open its three-dot menu.
4. Choose Delete chat and confirm.
5. Repeat for every other conversation you want to remove.

Meta documents the current behavior in its Messenger deletion help. Button names and menu positions can differ slightly by device, account, and interface version.

This method is reasonable for a handful of chats. It becomes frustrating when the inbox contains hundreds of old conversations because every chat needs its own menu and confirmation.

Can you delete multiple Messenger conversations at once?

Messenger itself does not currently provide a multi-select or select-all control for ordinary personal inbox conversations. Searching for “bulk delete Messenger messages” or “mass delete Facebook messages” therefore leads to two practical choices:

1. Repeat Facebook's official delete flow manually for every conversation.
2. Use browser automation that performs the same confirmed actions in your own Messenger tab.

Be cautious with services that ask you to upload message exports, disclose a Facebook password, or paste session cookies. A cleanup tool does not need a separate copy of your private conversations to operate the controls already present in your browser.

How to bulk-delete Messenger conversations in Chrome

Messenger Cleaner is designed for selecting and processing multiple conversations without opening each chat individually.

The current workflow is:

1. Install Messenger Cleaner from the Chrome Web Store.
2. Open Facebook Messenger in Chrome.
3. Open the extension's side panel.
4. Select the conversations you want to process.
5. Choose Delete or Archive.
6. Review the selection and confirm the action.
7. Keep the Messenger tab visible while the run proceeds. You can follow its progress and stop it if necessary.

Deletion asks for confirmation because it can be permanent. The extension also supports restoring archived conversations. Its free allowance includes 10 successful delete or archive actions per day; restoring archived chats is free. Paid access removes the daily cleanup limit for the period you select.

The processing happens in your browser. CleanMySocial does not receive the contents of your Messenger conversations.

Does this delete individual messages or whole conversations?

Messenger Cleaner works at the conversation level. It can remove selected chats from your inbox, archive them, or restore archived chats. It is not a tool for selecting hundreds of individual message bubbles inside one conversation and deleting those messages for everyone.

That distinction matters:

• Deleting 200 conversations means removing 200 chat histories from your own inbox.
• Deleting 200 individual sent messages for everyone means acting on 200 separate messages inside their respective chats.

The first workflow can be automated as an inbox cleanup. The second remains constrained by Facebook's per-message controls.

Can you delete Messenger messages for everyone?

Deleting an entire conversation does not delete it for the other person. They retain their copy, including messages and attachments already delivered to them.

If Facebook offers Delete for everyone for a particular message you sent, you can use that message-level action. It does not turn an entire chat into a bulk “erase both sides” operation. Even deleting your Facebook account does not necessarily remove copies of sent messages from your friends' inboxes, as Meta explains in its account-deletion documentation.

Any extension or website promising to erase another person's entire Messenger history should therefore be treated skeptically.

Can you delete all Messenger messages on iPhone or Android?

The mobile Messenger app still handles ordinary conversation deletion one chat at a time. You can press and hold a conversation, choose the available delete option, and confirm, but there is no native select-all workflow.

Chrome extensions do not run inside the standard Messenger app on iPhone or Android. Messenger Cleaner is a desktop Chrome workflow. If you only have a few conversations, the mobile method is sufficient. For a large inbox, desktop selection is more practical.

Can you delete old Messenger messages by date?

Facebook does not provide a general “delete every conversation before this date” control for a personal Messenger inbox. Messenger Cleaner selects conversations rather than filtering individual messages by timestamp, so it should not be described as a date-based message eraser.

If age matters, review the conversations you want to keep before starting. For especially important chats, export your information first and then delete the unwanted conversation from Messenger.

What about Facebook Marketplace messages?

Marketplace conversations are delivered through Messenger. You can delete them manually from the Messenger interface like other conversations. If a Marketplace conversation appears in the currently supported Messenger conversation list, it can be handled through the same selection workflow; Facebook interface changes can affect where those chats appear.

Deleting a Marketplace conversation does not delete the listing, change an order, cancel a payment, or erase the other person's copy of the discussion.

Back up important chats before a mass cleanup

Bulk deletion is useful precisely because it processes many conversations, which also makes a mistaken selection more costly. Before deleting a large inbox:

1. Open Facebook's Accounts Center.
2. Go to Your information and permissions.
3. Choose Download your information.
4. Select the Facebook profile and include Messages.
5. Choose an appropriate date range and request the export.
6. Wait until the archive is ready and verify that it contains what you need.

Meta's information tools allow categories and date ranges to be selected when preparing a download. Keep the finished archive private: it can contain message text, names, attachments, and other sensitive account information.

Common questions

Will people be notified when I delete a conversation?

Deleting your copy of a conversation is an inbox-management action. It does not send the other participant a notification saying that you cleared your copy.

Can I recover a deleted Messenger conversation?

Do not assume that a deleted conversation can be restored. Check whether it was archived rather than deleted, and download important information before a large cleanup. Messenger Cleaner can restore conversations that were archived; it cannot reconstruct a conversation Facebook has permanently deleted from your account.

Is archiving safer than deleting?

Yes, when you are uncertain. Archiving removes a conversation from the main inbox without intentionally destroying its history. You can restore archived chats later and delete only the conversations you are sure you no longer need.

Does Messenger Cleaner upload my messages?

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

Is there a free way to try it?

Yes. Messenger Cleaner includes 10 successful delete or archive actions per day at no charge, and restoring archived conversations is free. That is enough to verify the workflow on a small selection before considering paid access.

Bottom line

Messenger has no native button for deleting every ordinary inbox conversation at once. Manual deletion works one chat at a time; mobile does not add a hidden select-all option. For a larger cleanup, Messenger Cleaner lets you select conversations and automates the confirmed delete or archive flow in desktop Chrome.

Whichever method you choose, remember the boundary: deleting a conversation clears your side, not everyone else's. Export anything important, test the workflow on a small selection, and archive uncertain conversations instead of permanently deleting them.