jdbc

Apache JMeter is an open source Java application, designed to load test functional behavior and measure performance. Originally designed for testing Web Applications, it has since expanded to other test functions as well.

CalcTape is a revolutionary new kind of pocket calculator. With CalcTape, also extensive calculations remain clearly structured. CalcTape makes the arithmetic process visible - you can generate intermediate results and subsequently correct or change all numbers and operations.

DataGrip is a database IDE from JetBrains that is tailored to suit specific needs of professional SQL developers.

A comprehensive, open-source database management tool ideal for developers and administrators. It supports various databases via JDBC drivers, offers extensive plugins and tools like ER diagrams, data migration, and metadata editing, while being ad-free and portable. Usability and extensibility are key features.

DbVisualizer is the Universal database tool for developers, analysts and DBAs. It runs on all major OS'es and connects to all major databases and JDBC drivers.

Navicat is a database administration tool that allows you to simultaneously connect to MySQL, MariaDB, SQL Server, Oracle, PostgreSQL, and SQLite databases from a single application.

RazorSQL is an SQL query tool, database browser, SQL editor, and database administration tool for Windows, Mac OS X, Linux, and Solaris.