Open Source Debuggers

The Lazarus IDE is a stable and feature rich visual programming environment for the FreePascal Compiler. It supports the creation of self-standing graphical and console applications and runs on Linux, FreeBSD, MacOSX and Windows.

An open-source x64/x32 debugger for windows. Development is done on GitHub (https://github.com/x64dbg/x64dbg). Daily snapshots are uploaded here, snapshots for every commit can be found on http://releases.x64dbg.com

SharpDevelop is the open-source IDE for the .NET platform. Write applications in languages including C#, VB.NET, F#, IronPython and IronRuby, as well as target rich and reach: Windows Forms or WPF, as well as ASP.NET MVC and WCF. It starts from USB drives, supports read-only projects, comes with integrated unit and performance testing tools, Git, NuGet and a lot more features that make you productive as a developer.

TilEm is an emulator for the Z80 series of Texas Instruments graphing calculators. It supports all of the existing models in this series (TI-73, TI-76.fr, TI-81, TI-82, TI-83, TI-83 Plus, TI-84 Plus, TI-85, and TI-86.) TilEm features detailed emulation of all aspects of the calculator hardware, and includes a debugger for writing assembly programs.

Daphne is a system tray application for process killing, controlling and debugging. It's development started back in 2005. It was first thought to kill a set of windows process at once. With the time it became a GPL task manager replacement for Windows. You can kill a process by dragging the mouse over the windows, by right-clicking the process in the main process list, or by typing its name with the "Kill all by name" command. You can set a any window to be always on top, to be transparent, to be enable, et cetera. Although Daphne was born just to kill windows process. You can think of Daphne as a task manager replacement. The main window displays a list of currently running process with detailed information about: CPU usage, Process ID, Process name, Full path (and arguments), Priority, Class (Process / Service), Current memory usage, Peek memory usage, Current swap usage, Peek swap usage and Number of threads.

A RAD GUI Building IDE for wxPython.

Edyuk is a free, open source, fast and lightweight development environment which supports C++ and Qt 4 out of the box and can be extended through plugins. It works under all platforms supported by Qt 4 (Linux, Mac, Windows, BSD, ...).

A tool to monitor and analyse data transmitted between clients and a server through a TCP connection. This tool focuses on the data stream (software layer), not on the lower level transmission protocol as packet sniffers do.

LOG4PLSQL is a PLSQL framework for logging in all PLSQL code this project was born from the log4J spirit (and use it). You have the possibility to log apart from transaction and use all LOG4J feature.

Adebug/Assemble is a pair of Debugger/Assembler for the MC68Xxx family running on Atari and Amiga computers. Years ago commercial product, now GPL.

The Log & Dbug Library is an open source PL/SQL library, useful to log/debug your programs in the development phase and trace their activity and performances in production. It is ideal to improve your efficiency and code quality.

javascript logger based on Prototype 1.4

Le projet Atlantis est une collection de composants et de bibliothèques pour Lazarus. The Atlantis project is a collection of components and libraries for Lazarus.

CFTestingKit is a framework designed for code testing by using test cases and test suites. These test units are written as ColdFusion components tied together in a model very close to the one used by SUnit.

CorbaTrace is a helpful tool for tracing communications beetween Corba objects. Once CorbaTrace is installed, remote calls are intercepted and informations are stored in XML files. So, you will be able to apply filters and get XMI files to see the commu

"Runtime Inspector" is an extended object inspector. It can help developper to see object information at run-time.

JLogger is written for the java developper that need a powerfull and easy-to-use logging tool.

Plugins for Maven 1.x (http://maven.apache.org/maven-1.x/) - manage all aspects of your project (tests, docs, distribution) from a single project descriptor! This project provides plugins that are not bundled with Maven due to differing licenses.

PHP_Debug : A simple and fast way to debug PHP code This PHP debug library offers you the ability to debug your PHP code and generate a trace of your program. - Process time - Database and query process time - Functionnal debug - Check performance

The beSee-2-x architecture brings JVM wide instrumentation for AOP systems, independant from bytecode kit (BCEL, Javassist). A plugin is provided to instrument BEA WebLogic (v7) for tracing purpose (servlet->EJB->CMP->DB), with full JMX capabilities.

LogViewer is a MS Windows .NET application that display logging datas. It's like the unix 'tail'. It can read a file or listenning over a TCP socket. Use regulars expressions to Hide, Rewrite, Colorize lines of log. Have a look at Screenshots section.