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

If you've used Facebook for more than a few years, your Messenger inbox is probably a museum: group chats from 2013, marketplace haggling, conversations with people you don't remember meeting. And when you finally decide to clear it out, you discover something frustrating — Facebook has no "delete all" button. Not on the website, not in the app.

Here's every way to do it, from the slow official method to the fast one.

The manual way (official, but painful)

Facebook only lets you delete conversations one at a time:

1. Open facebook.com/messages on desktop.
2. Hover over a conversation in the left sidebar and click the three-dot menu (⋯).
3. Click Delete chat, then confirm in the popup.
4. Repeat for the next conversation. And the next.

That's two clicks plus a confirmation for every single thread. If you have 300 conversations, you're looking at nearly a thousand clicks — and Messenger's sidebar reloads and reshuffles as you go, so it's easy to lose your place.

What "delete" actually does

One important thing before you start: deleting a conversation removes it from your side only. The other person keeps their copy. If you want specific messages gone from both sides, you need Unsend (Remove for everyone), which only works on individual messages you sent — and there's a time limit on some surfaces. For a full inbox wipe, deleting your copy is the realistic goal.

Can you delete everything from the mobile app?

No faster than desktop. Long-press a conversation → Delete. Still one at a time. There is no select-all, no multi-select, nothing.

The fast way: bulk delete with a browser extension

Since Facebook won't do it, a Chrome extension can — by automating the exact same clicks you'd do by hand, inside your own logged-in browser tab.

With Messenger Cleaner the whole process is:

1. Open facebook.com/messages.
2. Click the Messenger Cleaner icon in your toolbar.
3. Click Remove Messages and let it run.

It works through your inbox thread by thread, exactly as you would manually — just without you having to sit there clicking. Because it runs entirely in your own browser session, your messages are never sent anywhere; the extension simply drives the same delete buttons Facebook already gives you.

Before you wipe everything

• Download your data first if there's anything you might want later: Facebook Settings → Your information → Download your information, and select Messages. You'll get an archive of everything before you delete it.
• Leave group chats you care about out of the sweep — deleting a group conversation removes your copy of the history, and rejoining won't bring it back.
• Remember the other side keeps their copy regardless of how you delete.

Bottom line

Facebook gives you no bulk-delete option, and the manual method costs hours of clicking. If your inbox has years of clutter, automating the cleanup is the only sane way to do it.