x64dbg
x64dbg: A capable free debugger for analyzing 32-bit and 64-bit Windows executables. Ranked #17 of 27 in Debuggers by our editors (7.3/10); pricing: Free plan; best for windows executable analysis.
At a glance
- Editor score7.3 / 10
- PricingFree plan
- Best forWindows executable analysis
- Free planYes
- Paid fromFree
- Facts checked20 Sep 2026
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
Our verdict on x64dbg
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.
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x64dbg pricing
x64dbg fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Supported languages | Not verified |
| Target platforms | Windows |
| Remote debugging | Not verified |
| Conditional breakpoints | Yes |
| Exception breakpoints | Yes |
| Time-travel debugging | Not verified |
| Core dump debugging | Not verified |
| Deployment | Desktop |
| Platforms | Windows |
| Support | Community, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | x64dbg.com |
| Facts checked | 20 Sep 2026 |
Alternatives to x64dbg
- GDBA free, open-source debugger with unusually broad language, target, and remote-debugging coverage.9.4
- LLDBA capable, free debugger for C/C++ and Apple-platform development.9.2
- WinDbgA free, deeply capable debugger for Windows applications, drivers, and crash analysis.9.0
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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