QueryDeck is a native macOS database client built for app developers. Point it at a Prisma, Drizzle, TypeORM, Django, Rails, or SQLAlchemy project and it finds the connection, understands the ORM schema, and flags drift against the live database. Built in Swift and AppKit, it supports PostgreSQL, MySQL, SQLite, MongoDB, and Redis, with SQL notebooks, ERDs, EXPLAIN ANALYZE, Touch ID protection, and an MCP server for coding agents.