The best OllyDbg alternatives
The rest of Best Debuggers, in this site's order: each with what it costs, where it runs and its record score.
IDA Pro suits software and security professionals who need to inspect binaries across processor families, automate analysis or debug remote targets.
LLDB suits developers debugging C, C++, Objective-C, or Objective-C++ code, including people working with Xcode or compatible editors and IDEs.
It suits embedded developers working with supported microcontrollers who want GDB-based debugging across Windows, Linux, or Mac environments.
GDB suits developers who need to inspect programs across supported operating systems and languages.
It suits Perl developers who want to inspect program execution, set conditional breakpoints, or watch global values.
PonyDebugger suits developers debugging native iOS applications who want network, Core Data, view hierarchy, and remote logging tools in Chrome…
pyOCD suits developers working with Arm Cortex-M microcontrollers who want command-line, IDE, or Python API debugging.
RenderDoc suits graphics developers debugging their own programs on supported systems and graphics APIs.
FlowStorm suits developers working with Clojure or ClojureScript who want to inspect recorded execution and thread behavior.
unittest suits Python developers who need built-in test organization, assertions, discovery, mocks, and command-line execution.
Delve suits Go developers who need command-line debugging, editor integration, or a headless API for a separate client.
OpenOCD suits developers working with embedded target devices who need debugging, programming, or boundary-scan testing.
dnSpyEx suits developers who need to inspect, edit, decompile, or debug .NET assemblies without source code.
FLEX suits iOS developers who need to inspect and change app state during development.
x64dbg suits Windows users analyzing or reverse-engineering 32-bit and 64-bit executables, including malware-analysis work.
It is for Ruby developers debugging MRI 2.7-or-later programs locally or remotely.
It suits Erlang developers familiar with the language who need local or remote process inspection on Linux, macOS, or Windows.
