12

How can I clear the channel history?

The channel in question is a private channel created by me and is not (yet) archived.

3

It's possible to batch delete messages through the Slack archives page, but this only lets you delete one page of messages at a time and does not delete any corresponding file uploads.

A better solution that deletes all messages from channels and/or groups, including file attachments, is slack-cleaner.

2

A very fast way to do this is to recreate the channel:

  1. Open your channel in Slack
  2. Click the config button and choose "Additional Options"
  3. Choose "Rename the Channel" and name it something (like "old-channel")
  4. Create a new channel with the same name as the original

In my case, I archived the old channel afterwards.

  • 2
    Not valid for #general channel. You can not delete it or eliminate people from that channel – DanielBlazquez Feb 26 at 19:15
0

Well, I suggest to use a Chrome extension tools https://slackext.com/deleter to bulk clean the pub/private/im channel message, rapidly and elegantly. Here is a video to show how it works https://www.youtube.com/watch?time_continue=2&v=Y59S_v1pQeI

0

I was looking for such a tool you asked. I tried current ones but I could not get good results. Finally, I found a new one: https://www.messagebender.com. You can delete Slack messages and files in bulk with a backup option via Message Bender. I bought a package with 12500 messages deletion limit and it really cleaned my workspace very well.

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