What you can and cannot delete on Facebook
Facebook lets you delete messages you've sent, but the word "delete" means different things depending on which side of the conversation you're on. When you delete a message from your inbox, it disappears from your view only — the person who received it still sees it on their end. If you want the message gone from both inboxes, you need to use the unsend feature, which removes it from both yours and the recipient's message thread entirely.
The unsend option works only on messages you sent yourself. You cannot unsend messages that someone else sent to you — you can only delete them from your own inbox. This is a deliberate design choice by Facebook to prevent one person from erasing evidence of a conversation without the other person's knowledge.
There is no way to force-delete someone else's messages from their inbox, and no setting that retroactively unsends old messages. Each message must be unsent individually, and you have a time limit: Facebook allows you to unsend messages only within a certain window after sending them (typically a few hours to a day, though the exact timeframe can vary).
Key Takeaways
- Use the unsend feature to remove a message you sent from both your inbox and the recipient's inbox permanently.
- Unsending only works on messages you sent yourself, not messages others sent to you.
- You must unsend messages individually — there is no bulk unsend option for multiple messages at once.
- Unsending has a time limit; you cannot unsend messages after a certain period has passed since sending them.
- If you delete a message without unsending it, the recipient will still see that message in their inbox.
How to unsend a single message on Facebook Messenger
Open Facebook Messenger and locate the conversation containing the message you want to remove. Find the specific message you sent — it will appear on the right side of the screen if you're on desktop, or in the main thread if you're on mobile.
On desktop, hover your mouse over the message until a row of icons appears above or beside it. Look for the three dots or menu icon (⋯) and click it. A dropdown menu will show several options; select "Remove" or "Unsend". The message will disappear from both your inbox and the recipient's inbox within seconds.
On mobile (iPhone or Android), press and hold the message until a menu appears at the bottom of the screen. Tap "Remove" or "Unsend" from the options shown. The message will be deleted from both sides when ready.
After unsending, the recipient will see a notification in the conversation that says "You unsent a message" or similar language, depending on which device they're using. They will not see the content of the message itself, but they will know that you removed something.
Unsending messages on older conversations
If you're trying to unsend a message from weeks or months ago, you may find that the unsend option is no longer available. Facebook limits how far back you can unsend messages — the exact timeframe is not publicly documented, but it typically ranges from a few hours to several days after the message was sent.
Once the unsend window closes, your only option is to delete the message from your own inbox, which does not remove it from the recipient's view. If you need to remove a very old message, you may need to contact the recipient directly and ask them to delete it from their end.
If you're concerned about old messages, the safest approach is to delete your entire conversation with that person. This removes all messages from your inbox, though the recipient will still have their copies. To delete a full conversation, right-click the conversation thread on desktop or swipe left on mobile, then select "Delete".
Bulk deletion versus individual unsending
Facebook does not offer a way to unsend multiple messages at once. You must unsend each message individually if you want it removed from both sides. If you have many messages to remove, this process will take time.
If your goal is straightforward to clean up your own inbox rather than remove messages from the recipient's view, you can delete entire conversations at once. Right-click or long-press the conversation and select "Delete Conversation". This removes all messages from your inbox but leaves the recipient's copies untouched.
For a faster cleanup of your own messages without worrying about the other person's inbox, deleting the conversation is the quickest method. For actual removal from both sides, you will need to go through messages one by one.
What happens after you unsend a message
When you unsend a message, it vanishes from the conversation thread on both ends. The recipient will see a small notification that says something like "You unsent a message" in place of where the message was. They cannot click on this notification to see what the message said — the content is permanently gone.
The recipient will know that you removed something, but they won't know what it was unless they saw it before you unsent it. If they read the message before you unsent it, they will have already seen the content, and unsending it afterward won't erase their memory of what it said.
Unsending does not send any notification to the recipient beyond the "You unsent a message" indicator in the thread. It does not alert them separately or flag the conversation in any special way.
Differences between delete and unsend
Delete removes a message from your inbox only. The recipient still has a full copy of the message and can read it, forward it, or take a screenshot of it. Deleting is useful for cleaning up your own message history but does nothing to remove the message from the other person's view.
Unsend removes the message from both inboxes. The recipient cannot read the message content, and it will not appear in their conversation history. Unsending is the only way to may support the message is gone from both sides, but it only works on messages you sent yourself and only within a limited time window.
If you want the message completely gone from both people's inboxes, unsend is the only option. If you only care about your own inbox, delete is faster and has no time limit.
Unsending messages in group chats
The unsend feature works the same way in group conversations as it does in one-on-one chats. Hover over or long-press the message, select "Remove" or "Unsend", and the message will disappear from the group thread for everyone in the chat.
All group members will see the "You unsent a message" notification, but none of them will be able to see what the message said. This applies whether the group has three people or thirty.
Like one-on-one messages, you can only unsend messages you sent yourself, and only within the time window Facebook allows. You cannot unsend messages that other group members sent.
Frequently Asked Questions
Can I unsend a message after the person has already read it?
Yes, you can unsend a message at any time within the unsend window, whether the recipient has read it or not. However, if they read it before you unsent it, they already saw the content. Unsending removes the message from the thread, but it does not erase what they saw.
How long do I have to unsend a message before it's too late?
Facebook does not publish an exact timeframe, but the unsend window is typically a few hours to a day after you send the message. If you try to unsend a message that's more than a day or two old and the option doesn't appear, the window has closed and you can no longer unsend it.
Will the person know what message I unsent?
They will see a notification that you unsent something, but they won't see the message content unless they read it before you unsent it. If they didn't read it yet, they have no way to know what it said.
Can I unsend messages on Facebook's main site and on Messenger?
Yes, the unsend feature works on both Facebook.com and the Messenger app. The steps are slightly different (hover on desktop, long-press on mobile), but the result is the same — the message is removed from both inboxes.
What if I delete my entire Facebook account — does that delete my messages from other people's inboxes?
No. Deleting your Facebook account does not remove your messages from other people's inboxes. They will still have copies of all the messages you sent them. The only way to remove a message from someone else's inbox is to unsend it while your account is still active.