This lightweight extension prevents Slack from sending a typing status to channels and private messages.
Slack Hide Typing prevents the Slack website from sending typing indications to other users. You will be able to still see when other people are typing, unless they're also using this extension. The source is available at: https://github.com/andrewconner/slack-hide-typing
- (2019-10-24) George Olaru: This extension should be an (official) option inside Slack. I'm glad that I found it – it greatly reduces my team anxiety when writing long notes :-)
- (2016-11-09) Jonathan: Thank you!