Errbit - The open source error catcher that's Airbrake API compliant
Redsmin - All-in-One GUI for Redis. Thightly crafted developer oriented, online real-time monitoring and administration service for Redis.
SQLAlchemy - SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL.
usql - Universal command-line interface for SQL databases
SqlPad - Run SQL in your browser and chart the results
Sequelize - Provides access to a MySQL database by mapping database entries to objects and vice-versa.