Redsmin - All-in-One GUI for Redis. Thightly crafted developer oriented, online real-time monitoring and administration service for Redis.
usql - Universal command-line interface for SQL databases
Errbit - The open source error catcher that's Airbrake API compliant
DBeaver - DBeaver - Universal Database Manager and SQL Client.
peewee - Object Relational Mapper (ORM)
mycli - A CLI for MySQL with auto-completion and syntax highlighting