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Head-to-head · Debuggers

LLDB vs WinDbg

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score LLDB #2 in Debuggers 9.2/10 Free plan Free plan✓ 4 of 5 features Visit LLDB
WinDbg #3 in Debuggers 9.0/10 Free plan Free plan✓ 5 of 5 features Visit Microsoft

LLDB leads on 0 checks, WinDbg on 1, and 5 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreLLDB · 9.2/10
  • Free planboth
  • Most featuresWinDbg · 5 of 5

LLDB scores higher on our rubric for debuggers: 9.2 against 9.0 out of 10; our editors rank them #2 and #3.

WinDbg offers time-travel debugging; LLDB doesn't.

LLDB is the better fit for C/C++ and Apple-platform debugging. WinDbg is the better fit for windows and kernel debugging.

  • LLDB fits best

    C/C++ and Apple-platform debugging

  • WinDbg fits best

    Windows and kernel debugging

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Side by side

Feature LLDB 9.2/10 Visit ↗ WinDbg 9.0/10 Visit ↗
At a glance
Editor score 9.2 9.0
Ranking #2 in Debuggers #3 in Debuggers
Best for C/C++ and Apple-platform debugging Windows and kernel debugging
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted, Desktop Desktop
Platforms Windows, macOS, Linux, iOS Windows
Support Docs, Community Docs
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features LLDB 4/5 · WinDbg 5/5
Remote debugging ✓ ✓
Conditional breakpoints ✓ ✓
Exception breakpoints ✓ ✓
Time-travel debugging — ✓ (best)
Core dump debugging ✓ ✓
Specs
Supported languages C, C++, Objective-C, Objective-C++ C++, C#, JavaScript, assembly
Target platforms macOS, iOS, tvOS, watchOS, Linux, FreeBSD, NetBSD, Windows, Android Windows; Linux crash dumps
Our review
Pros
  • Native debugging for C, C++, Objective-C and Objective-C++
  • Remote, core-file and conditional-breakpoint support
  • Integrates with Xcode, LLVM, Clang and VS Code via lldb-dap
  • Combines user-mode and kernel-mode debugging for Windows code and drivers
  • Supports crash dumps, remote sessions, and configurable exception handling
  • Time Travel Debugging records and replays execution for deeper analysis
Cons
  • Narrower language coverage than multi-language debuggers
  • No time travel debugging
  • Distributed through toolchains and IDEs rather than as a standalone commercial product
  • Its primary focus is Windows rather than cross-platform debugging
  • Linux support centers on kernel and ELF core-dump analysis
  • The broad feature set may be more than basic application debugging requires
Our verdict

LLDB is an open-source debugger from the LLVM Project for developers working with C, C++, Objective-C and Objective-C++. It supports macOS, iOS, tvOS, watchOS, Linux, FreeBSD, NetBSD, Windows and Android targets, with distributions…

Read the review →

WinDbg is Microsoft’s debugger for live user-mode and kernel-mode code, crash dumps, and minidumps. It is aimed at software developers, driver developers, system engineers, and incident investigators working with Windows applications,…

Read the review →
  1. LLDBDebuggers 9.2Free plan
  2. WinDbgDebuggers 9.0Free plan

Strengths and trade-offs

  • LLDB — where it wins

    • Native debugging for C, C++, Objective-C and Objective-C++
    • Remote, core-file and conditional-breakpoint support
    • Integrates with Xcode, LLVM, Clang and VS Code via lldb-dap

    Where it doesn't

    • Narrower language coverage than multi-language debuggers
    • No time travel debugging
    • Distributed through toolchains and IDEs rather than as a standalone commercial product

  • WinDbg — where it wins

    • Combines user-mode and kernel-mode debugging for Windows code and drivers
    • Supports crash dumps, remote sessions, and configurable exception handling
    • Time Travel Debugging records and replays execution for deeper analysis

    Where it doesn't

    • Its primary focus is Windows rather than cross-platform debugging
    • Linux support centers on kernel and ELF core-dump analysis
    • The broad feature set may be more than basic application debugging requires

More comparisons

All debuggers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update