A highly popular, free, and incredibly fast Windows client that supports MySQL, MariaDB, and PostgreSQL. It offers an excellent portable version.

Excellent query optimization features, visual explain plans, and robust data charts.

Always use strong, encrypted passwords for your MySQL server users.

The official, modern successor developed by Oracle. It is feature-rich but requires a full installation and heavier system resources.

MySQL Query Browser 1.2.17 Portable: A Classic Tool for Modern Database Management

MySQL Query Browser was part of the designed by Oracle (formerly MySQL AB) to provide a visual interface for constructing, executing, and optimizing SQL queries.

If you are looking for a "portable" version today, you are likely encountering one of two things: