HeidiSQL
HeidiSQL is free software, and has the aim to be easy to learn. "Heidi" lets you see and edit data and structures from computers running one of the database systems MariaDB, MySQL, Microsoft SQL, PostgreSQL and SQLite. Invented in 2002 by Ansgar, HeidiSQL belongs to the most popular tools for MariaDB and MySQL worldwide. Free for everyone, OpenSource. Connect to multiple servers in one window. Supported database systems: MariaDB, MySQL, MS SQL, PostgreSQL and SQLite. Connect to servers via commandline. Connect via SSH tunnel, or pass SSL settings. Create and edit tables, views, stored routines, triggers and scheduled events. Generate nice SQL-exports, compress these afterwards, or put them on the clipboard. Export from one server/database directly to another server/database. Manage user-privileges, import text-files, export table rows as CSV, HTML, XML, SQL, LaTeX, Wiki Markup and PHP Array. Browse and edit table-data using a comfortable grid.
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Adminer
Replace phpMyAdmin with Adminer and you will get a tidier user interface, better support for MySQL features, higher performance and more security. Security is #1 priority in development of Adminer. Adminer does not allow connecting to databases without a password and it rate-limits the connection attempts to protect against brute-force attacks. Still, consider making Adminer inaccessible to public by whitelisting IP addresses allowed to connect to it, password-protecting the access in your web server, enabling security plugins (e.g. to require an OTP) or by customizing the login method. You can also delete Adminer if not needed anymore, it is just one file which is easy to upload in the future. Adminer had some security bugs in the past so update whenever Adminer tells you there is a new version available (ask your administrator if you could not update yourself). Connect to a database server with username and password. /Select an existing database or create a new one.
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RazorSQL
RazorSQL is an SQL query tool, database browser, SQL editor, and database administration tool for Windows, macOS, Mac OS X, Linux, and Solaris. RazorSQL has been tested on over 40 databases, can connect to databases via either JDBC or ODBC. Browse database objects such as schemas, tables, columns, primary and foreign keys, views, indexes, procedures, functions, and more. Visual tools to create, alter, describe, execute, and drop database objects such as tables, views, indexes, stored procedures, functions, triggers, and more. Includes multi-tabular display of queries with options for filtering, sorting, searching, and much more. Import data from various formats such as delimited files, Excel spreadsheets, and fixed-width files. Includes a robust relational database (HSQLDB) that is up and running with no manual configuration out of the box.
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Sqlectron
A simple and lightweight SQL client desktop/terminal with cross-database and platform support. A desktop application with a simple interface. Sign and notarize builds for macOS. Supports PostgreSQL and MySQL. Sqlectronhas also has a GUI interface called sqlectron-gui. Most of the time you should not worry about files, because Sqlectron will manage the configuration for you. The paging is not done in SQL query, instead, it is done during the results rendering. Supports PostgreSQL, Redshift, MySQL, MariaDB, Microsoft SQL Server, Cassandra, and SQLite.Although it is possible to change files manually, it is usually better to just use the UI since it allows you to change any of the settings from there.
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