Trowser is a browser for large line-oriented text files (such as debug traces). It's meant as an alternative to "less". Compared to less, trowser adds color highlighting, a persistent search history, graphical bookmarking, separate search result windows, and flexible skipping of input from pipes to STDIN. Trowser has a graphical interface, but is designed to allow browsing via the keyboard at least to the same extent as less. Key bindings and the cursor positioning concept are derived from vim.
Yet Another Java Profiler is a profiler tool that uses the JVMTI interface. It can be used to selectively trace a Java program and store this information in a compressed logfile. This logfile can then later be analyzed using the same tool. It's also possible to monitor heap/stack usage and the threads at runtime.
JRegexpTester is a standalone Swing application that helps you test regular expressions with the Java standard API (java.util.regex). The extracted data can be modified with formatters similar to those used by sprintf, or with standard Java date and decimal formatters. It features RegExLib library integration with more than 900 patterns. It can also help you manage CSV files.
CTA++ is a tool for unit testing C++ classes, libraries, and subsystems. It is easy to use and provides very powerful features, helping the tester to build the testing environments and running the tests on C++ code. The testing process becomes efficient, visible, and organized, as required in a professional testing environment.
Schroedinger is the combination of Apache Tomcat with a nice, clean Swing GUI. It provides an easy way to create and test JSP and Servlet Web applications. It records every JSP/HTTP activity so that every possible bug can be corrected immediately. Schroedinger can be used in personal mode, which prevents others from using its JSP Server while you develop the application. Alternatively, Schroedinger's working directory can be opened via file-sharing, so that a JSP can be copied to any computer of the JSP development team.