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). 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