I built a free desktop SQL client with a live database health dashboard

What is DB Explorer? DB Explorer is a free, open desktop database client built in Java. It supports PostgreSQL, MySQL/MariaDB, Oracle, SQL Server, SQLite, and AWS DynamoDB — all from one tool, with no subscription, no telemetry, and no account required. What's new in v2.1 The big addition is a live Database Health Dashboard. When you enable it for a connection, it opens a dedicated background JDBC connection (separate from your query connection) and polls your database