Message Bender - Backup and delete all Slack messages in bulk
Floppy disk for Slack - Store slack threads in Notion, Coda or Airtable
Slack Deletron - Delete files from your Slack Workspace!
ArchiveBox - The open-source, self-hosted internet archiving solution
Slackin - Create your own public Slack chat community
UX Archive Animated - iOS apps animated user flows