x64dbg review

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

x64dbg is an open-source user-mode binary debugger for Windows, aimed at reverse engineering and malware analysis of executables without source code. It provides separate x32dbg and x64dbg applications for 32-bit and 64-bit debugging. The core workspace covers disassembly, memory inspection, registers, threads, call stacks, symbols, and control-flow graphs, giving analysts several views of an executable’s behavior and structure.

Its feature set is particularly strong for interactive investigation. Conditional and exception breakpoints, tracing, a C-like expression parser, and trace recording support targeted debugging rather than only step-by-step execution. PDB debug symbol support can add context when symbols are available, while executable patching and import reconstruction extend the workflow beyond inspection. The published project also includes ASM-like scripting and a plugin API, so technical users can adapt the debugger around repeatable analysis tasks. Trace recording is described as smaller-scale than Time Travel Debugging, keeping expectations focused on its stated workflow.

The clearest fit is for analysts who need a free Windows tool for local 32-bit and 64-bit executable analysis, with source code available under GPLv3. Its scope is narrower than a cross-platform or broader debugging environment: the product is built around Windows user-mode binaries, and its documented strengths center on disassembly, runtime inspection, graph analysis, patching, scripting, and plugins. Choose x64dbg when Windows executable analysis is the priority; choose another debugger when your work depends on platforms beyond Windows, general remote-debugging workflows, or full Time Travel Debugging capabilities.

x64dbg pros and cons

• Where it wins
  • Debugs both 32-bit and 64-bit Windows executables
  • Combines tracing, conditional breakpoints, graphs, symbols, and patching
  • Open-source with scripting and plugin APIs
• Where it doesn't
  • Windows-only platform support
  • Trace recording is smaller-scale than Time Travel Debugging
  • Focused on user-mode executable analysis

x64dbg fact sheet, pricing and score →

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Last updated 7 Oct 2026 · How we research and update