Message Bender - Backup and delete all Slack messages in bulk
Slack Deletron - Delete files from your Slack Workspace!
Islands - Slack for College 🌴
Slackin - Create your own public Slack chat community
echofin - Echofin helps communities grow, engage and monetize their following in ways no other platform has done so far.
Hamster Pad - A social network built on top of Slack