RazorSQL

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MySQL Workbench

HeidiSQL is a free and open-source GUI for MariaDB, MySQL, Microsoft SQL, PostgreSQL and SQLite databases. With HeidiSQL, you can spectate and edit data and structure of your database in an intuitive interface. The software allows you to connect to your database via SSH tunnel or with SSL, and connect to multiple servers simultaneously, while also being able to monitor and kill client process in real-time.

DBeaver is an open-source SQL client and a database administration tool. With DBeaver you can manage any relational databases that has support for JDBC driver, in a well designed GUI. The software is released as two separate versions, DBeaver Community Edition and DBeaver Enterprise Edition. DBeaver Community Edition is freely used and distributed under the ACL license. While DBeaver Enterprise Edition is sold at a monthly subscriptions, and supports NoSQL databases like MongoDB, Cassandra, InfluxDB, Redis, Amazon DynamoDB, Google Bigtable and CouchDB.

PopSQL is an collaborativ SQL editor for macOS, Linux and Windows. PopSQL is used by data analysts, product managers, customer success, operations, and anyone that wants to write SQL. As it allows them to write queries, visualize data, and share your results with their co-workers and team.

dbForge Studio for MySQL is a universal GUI tool for MySQL and MariaDB database development, management, and administration. 

Sequel Pro is an incredibly fast, easy-to-use database management application for macOS. The software is designed from the ground up to work with MySQL & MariaDB databases natively on the mac. Sequel Pro provides a neat UI that can be used to manage and adding schema or data for your local development database or connect to servers remotely.

Beekeeper Studio is a well-designed and easy to use SQL client for MySQL, PostgreSQL, SQLite, SQL Server, and a variety of other relational database management systems. The software allows you to connect to databases normally or encrypted with SSL, or tunnel through SSH to ensure maximum security while still providing choices. With Beekeeper Studio, you can manage multiple tabs and multitask across operations, while providing auto-complete suggestions for tables and queries. Commonly used queries can be saved and orginized into workspaces, that can be used across connections and projects. Beekeeper Studio is both free and open source and released under the MIT License.