Slackin - Create your own public Slack chat community
Mio - Powering seamless communication between workplace chat apps.
Message Bender - Backup and delete all Slack messages in bulk
Hamster Pad - A social network built on top of Slack
Slack Archive - Public, searchable & browseable archive of Slack channels
HospitalPORTAL - HospitalPORTAL comes with a built-in policy manager that helps users to automate their document and policy management processes.