An open-source user mode debugger for Windows. Optimized for reverse engineering and malware analysis.

Delve is a debugger for the Go programming language.

A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware. Brought to you by Winsider Seminars & Solutions, Inc. @ http://www.windows-internals.com

RenderDoc is a stand-alone graphics debugging tool.

Console for mobile browsers

Free and Open Source Reverse Engineering Platform powered by rizin

Allows you to emulate an Android native library, and an experimental iOS emulation

Never use print for debugging again

The standalone app based on official debugger of React Native, and includes React Inspector / Redux DevTools

Modular visual interface for GDB in Python

The faster and smarter Debugger for Firefox DevTools 🔥🦊🛠

Go extension for Visual Studio Code

Program for determining types of files for Windows, Linux and MacOS.

A runtime developer console and IRB alternative with powerful introspection capabilities.

Record and Replay Framework

A free but powerful Windows kernel research tool.

Lightweight Lua-based IDE for Lua with code completion, syntax highlighting, live coding, remote debugger, and code analyzer; supports Lua 5.1, 5.2, 5.3, 5.4, LuaJIT and other Lua interpreters on Windows, macOS, and Linux

Browser-based frontend to gdb (gnu debugger). Add breakpoints, view the stack, visualize data structures, and more in C, C++, Go, Rust, and Fortran. Run gdbgui from the terminal and a new tab will open in your browser.

Unofficial revival of the well known .NET debugger and assembly editor, dnSpy

A small, simple editor for beginner Python programmers. Written in Python and Qt5.