[header] How to delete a channel on slack [title] Navigate to slack.com in your web browser. [step] If you want to delete a channel from slack, you can do so on the slack website. Deleting will also erase the channel's entire history, meaning that all information once shared there will disappear. 
[substeps] If you want the ability to undelete a channel later, archive it instead. Private channels cannot be deleted, but they can be archived.