• Debug Applications, Applets, Servlets and EJBs.
• Local and Remote debugging.
• Run, Attach and Listen.
• User friendly GUI.
• Multi-Thread debugging.
• Breakpoint Groups.

• Implemented RFE 458: byte code viewer for current method.
• Implemented RFE 1009: validate class name in launch dialog.
• Implemented RFE 1010: add last resort hueristic for finding source files.

JSwat is a graphical Java debugger front-end, written to use the Java Platform Debugger Architecture and based on the NetBeans Platform. JSwat is open-source software and is freely available in both binary and source code form. Its features include breakpoints with conditionals; colorized source code display with code navigator; movable display panels showing threads, call stack, visible variables, and loaded classes; command interface for more advanced features; and Java-like expression evaluation, including method invocation.

GRDB is the 'Get Real' real mode debugger for x86. It is somewhat similar to debug, but has a lot of extensions to allow working on real mode with current processors, such as real mode and native 32-bit code support and MMX support. There are also a lot of enhanced features supported as well. The current version even allows support for 32-bit code segments in real mode. A future version may allow debugging DPMI programs.

PEBrowse Professional Interactive builds upon the framework presented by PEBrowse Professional to create a very powerful, versatile, and customizable Win32 user mode debugger/disassembler. PEBrowse Interactive is not a source code debugger, but operates at the Intel x86 instruction level and therefore at the lowest level where your program executes. The debugger fully supports Microsoft .NET managed processes and seamlessly allows interop or mixed-mode debugging. It can be set as the startup debugger using the system registry Image File Execution Options key - useful for debugging ASP.NET applications.

When debugging Java applications the object-oriented aspect is often ignored. So it is difficult to determine which object is the currently active one.

jBixbe gives you a new innovative way to debug Java applications on the conceptual level of the Unified Modeling Language (UML) at which they are designed and makes it possible to find not only simple bugs but also weaknesses and insufficiencies in application design.

Zeta Debugger is a stand-alone source level debugger and code profiler for Windows 98/2000/XP applications written in C/C++ or assembly languages. Source level debugging is allowed when symbolic debug information emited by your compiler is one of those supported by our debugger or external plug-in modules. Otherwise, when this information is absent or not recognized, you can only debug at machine level.

IDA Pro is a Windows or Linux hosted multi-processor disassembler and debugger that offers so many features it is hard to describe them all.

Tiny Debugger (Teddybear) is the testbed for both Linux debugging and for the development of
the cTVision clone of Turbo Vision (written in C with the s-lang library). The goal is to end up with something close to a Turbo Debugger clone for Linux.

The Turbo Debugger is a program that allows you to single‑step your program (that means run it line‑by‑line while you watch what happens).  You can observe the registers, the memory dump, individual variables, flags, and the code as you trace through your program.  (You can use the Debugger with programs written in high level languages as well, observing both the source code and the assembly language code generated by the compilation of those programs.)

A symbolic debugger for Windows programmers with special features to analyse Windows code, data, events and messages.