# x64dbg/x64dbg

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

Repository: https://github.com/x64dbg/x64dbg
Canonical: https://ross.abutalabs.com/products/x64dbg
Homepage: http://x64dbg.com
Language: C++
License: NOASSERTION
License Family: other
Topics: debugger, windows, x64, disassembler, reverse-engineering, security, x86, x86-64, malware-analysis, security-tools, binary-analysis, ctf, dynamic-analysis, exploit-development, hacking, oscp, debugging, program-analysis, cybersecurity, offensive-security
Last push: 2026-08-23T23:13:49+00:00

## Health v2 (maintenance only)
Score: 90/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 74, longevity 100
- inputs: {"age_days": 4162, "days_push": 10, "days_rel": 98, "gap_med": 78.5, "n_releases_24m": 5}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 49306, forks 2828 (observed 2026-08-28T04:12:11.586824+00:00)

## What it is
x64dbg is an open-source user-mode binary debugger for Windows supporting both 32-bit and 64-bit executables. It is optimized for reverse engineering and malware analysis, featuring a disassembler, scripting, and an extensible plugin system.

## Use cases
- debug a Windows executable without source code
- analyze malware dynamically
- reverse engineer a 32-bit or 64-bit binary
- set conditional breakpoints and trace execution
- patch and disassemble an EXE or DLL
- solve CTF reverse engineering challenges
- develop exploits by inspecting memory and registers

## When to choose
- you need a free, open-source alternative to OllyDbg or commercial debuggers on Windows
- you are doing malware analysis or reverse engineering of Windows binaries
- you want a scriptable, plugin-extensible debugger with a familiar GUI

## When to avoid
- you need to debug Linux or macOS binaries
- you only need static analysis without dynamic debugging
- you need kernel-mode or driver debugging

## Facets
- artifact type: application
- maturity: active
- function: reverse-engineering, security, developer-tools, plugin-system
- domain: reverse-engineering, security, windows, developer-tools
- platform: windows
- tags: debugger, disassembler, malware-analysis, dynamic-analysis, binary-analysis, exploit-development, ctf, x86, x64, gui-debugger, desktop

## Member repositories
- x64dbg/x64dbg (main) score 90

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:11.586824+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:20:13.810447+00:00, confidence not recorded.
  - readme: https://github.com/x64dbg/x64dbg (fetched 2026-08-28T04:12:11.586824+00:00, sha e6fc674a111f)
  - homepage: http://x64dbg.com (fetched 2026-08-28T18:14:00.115650+00:00, sha 891eb2554b31)
  - site_page: https://help.x64dbg.com (fetched 2026-08-28T18:14:00.124654+00:00, sha 7436c50c4e5c)
- Data as of 2026-08-30T08:39:29.467469+00:00.