Lurchr - Saves all your Slack links, so you can focus on work
Clearbit for Slack - Send all signups directly to a Slack channel
Google Drive to Slack - Slack notifications whenever you work on Google Drive docs
KeePass - KeePass is an open source password manager. Passwords can be stored in highly-encrypted databases, which can be unlocked with one master password or key file.
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Airtable-to-PostgreSQL Migration Tool - A totally free migration tool.