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Sqlectron - One single DB client for any relational DB
Sqlectron: A Single GUI Client for Several Relational DBs — This has been around for years but, reassuringly, continues to get updates. Available for macOS, Windows and Linux, this is a straightforward client that works with Postgres, Redshift, MySQL, MariaDB, SQL Server, SQLite and Cassandra (to a basic extent). There’s also a terminal UI based equivalent.