Bulk Slack Message Removal

About

Delete Slack messages in bulk. It supports removing slack messages in public channels, private channels, group chat, and DM.  (Caveat: for group chat and DM, you can ONLY remove your own messages).

●  No OAuth required.
●  Unaffected by recent Slack API trottling changes. 

Also, it removes threaded messages as well.
Disclaimer: This is a paid product.

ATTENTION:  
There are 2 different types of licenses. You must be an admin in order to delete other people's messages. Once again, you can't delete other people's DM or group chat messages.

Admin License - If you are a Slack admin, you should choose this license. It would allow you to remove other people's messages in channels. A non-admin license will let you remove your own messages only. 

NOTE: you can only remove your own messages in a DM, however.

Non-admin License - You should choose this license if you are simply a member in your Slack workspace. Nothing prevents you from using an admin license, but you'll still only be allowed to remove your own messages.

Instructions
* Log in with your Slack login.
* Get a license via Gumroad and enter it in the extension popup.
* Select the target channel, DM, etc..
* Select the message sender whose messages you would like to delete.
* Click on the Bulk Delete button.
For detailed instructions, please visit 
https://github.com/noitcudni/bulk-slack-message-removal-extension

UPDATE (6/27/2025)
* Don't need to go thru Oauth anymore.
UPDATE (5/1/2024)
* Handles External users.
UPDATE (4/2/2024)
* Delete Deactivated users' messages.
UPDATE (11/24/2023)
* Delete by matching subtext
UPDATE (11/21/2023)
* Able to delete bot messages.
* More efficient fetching of messages and thread messages.
* Overall more smooth experience for the end users.
UPDATE (12/4/2022)
Able to delete bot messages only if you select *ALL* as the target user.
UPDATE (8/7/2022) 
Time filter


For support and feature requests: please ping me at https://twitter.com/noitcudni