Message threads
- All members and Guests can use this feature.
- Available on free and paid plans.
Threads let you respond directly to a message in a channel, keeping the replies organized neatly in a single, threaded conversation. Go ahead, ask questions and dig deeper, have side conversations, or go on a tangent without interrupting the flow of conversation.
Why use threads?
- Encourage open discussion without distracting others.
- Organize conversations and preserve meaningful context.
- Focus your time and attention on the task at hand.
Thread etiquette: Yes, it's a thing! Jump down to our guide to using threads for more. ✨
Start a thread to reply to a message
Desktop
iOS
Android
Windows Phone
- Hover over the message you'd like to reply to directly.
- Click the reply icon. Or, click on any message with replies to view the thread in the details pane.
- Compose your message.
- Click Send.
- Tap the message you’d like to reply to directly.
- Add a reply of your own to start or join the thread.
- Tap Send.
- Tap the message you’d like to reply to directly.
- Add a reply of your own to start or join the thread.
- Tap the paper plane icon to send.
- Tap the message you’d like to reply to directly.
- Select the Start a thread button that appears at the bottom of the thread.
- Tap the paper plane icon to send.
Keep track of threads
Follow a thread
You’ll automatically follow a message when you add a reply to a thread. If you’re interested in the conversation but have nothing to add, follow the message to stay in the loop:
Desktop
iOS
Android
Windows Phone
- Hover over a message or conversation you’d like to follow.
- Click the three dots icon.
- Select Follow thread from the menu to be notified about all new replies.
- Tap the message you’d like to follow.
- Tap the three dots icon.
- Tap Follow Thread.
- Tap the message you’d like to track.
- Tap the three dots icon at top right.
- Tap Follow message.
- Tap the message you’d like to track.
- Tap the three dots icon found under the original message in the thread.
- Tap follow this thread.
Note: If you @mention a member in a threaded message, they will begin following the thread automatically and see new messages in the All Threads view.
Unfollow a thread
If you're not interested in new replies in a conversation, you can simply unfollow the thread:
Desktop
iOS
Android
Windows Phone
- Open the All Threads view at the top of the channel list.
- Hover over the original message in the thread you'd like to unfollow.
- Click the three dots icon.
- Choose Unfollow thread from the menu.
- Open the All Threads view at the top of the channel list.
- Tap the thread you'd like to unfollow.
- Tap the three dots icon found under the original message in the thread.
- Tap Unfollow Thread in the menu.
- Open the All Threads view at the top of the channel list.
- Tap the thread you'd like to unfollow.
- Tap the three dots icon found under the original message in the thread.
- Tap Unfollow thread in the menu.
- Open the All Threads view at the top of the channel list.
- Tap the thread you'd like to unfollow.
- Tap the three dots icon found under the original message in the thread.
- Tap unfollow this thread in the menu.
Send a reply to the entire channel
Threads help focus conversations because threaded messages are separated from the main channel's view. But what if a wider audience would benefit from seeing what you have to say? You can send your reply to a thread to the entire channel. 📢
Desktop
iOS
Android
Windows Phone
- Click the reply icon to reply to a thread.
- Compose your message.
- Click the box to the left of Also send to #channel-name.
- Click Send. Here's how your message will appear in channel:
- Tap the message you'd like to reply to directly.
- Compose your message.
- Check the box next to Also send to #channelname.
- Tap Send. Your reply will be sent to the entire channel.
- Tap the message you'd like to reply to directly, then tap Start a thread.
- Check the box to the left of Also send to #channel.
- Compose your message.
- Tap the paper plane icon to send.
- Tap the message you'd like to reply to directly, then tap Start a thread.
- Check the box to the left of Also send to #channel-name.
- Compose your message.
- Tap the paper plane icon to send.
Catch up on new replies
Open the All Threads view — at the top of your channel list — to catch up on threads you follow. You can also reply to a thread, jump back to the conversation in a channel, or simply unfollow threads you're no longer interested in, all from one convenient location.

Tip: On the Slack desktop app, open the All Threads view from the comfort of your keyboard: ⌘ Shift T (Mac) or Ctrl Shift T (Windows).
A guide to using threads
- To thread or share a message? Threads work best when you want to keep your response connected to the original idea. Sharing a message is best used to rekindle past conversations or highlight specific messages from one channel to another.
- Avoid overuse. A thread's discussion won't appear in a channel's main view, so if other members would benefit from seeing your message, it's best to keep it out of a thread.
- Threads are courteous. They help keep channels focused and prevent active discussions from becoming derailed. But if you want others to see your message in a thread, send it to the entire channel just like a regular message in Slack.
Note: Message threads cannot be turned off at this time.