raddebugger
SHA-256Epic Games' open-source graphical multi-process debugger for Windows and Linux x64, featuring a custom debug info format and a high-performance linker optimized for massive projects.
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Download Download Version
v0.9.29-alpha · 4.5 MB
A modern graphical multi-process debugger from Epic Games, built for speed on huge codebases.
Core Features
- Graphical multi-process debugging with a modern UI
- Custom RDI debug info format for faster symbol loading on large projects
- RAD Linker with MSVC-compatible syntax, about 50% faster links on huge binaries
- Local x64 debugging on Windows and Linux
- Open source under MIT, actively maintained by Epic Games
What It Can't Do
- •The project is in alpha, so expect occasional crashes or missing features, and report issues with dump files on GitHub. It supports local x64 debugging only, with no remote debugging or ARM support yet. Linux support is very early, so Windows is the recommended platform. The linker's large-page option can fragment memory on standard Windows setups and should only be used in VMs or Docker. It is not a full IDE and provides no editing or build features.
Use Cases
- Debugging large C/C++ game or engine codebases
- Replacing WinDbg for everyday native Windows debugging
- Teams frequently linking multi-gigabyte executables
Detailed Introduction
RAD Debugger is an open-source, native, user-mode, multi-process graphical debugger developed by Epic Games under the MIT license. It currently targets local x64 debugging on Windows and Linux, with remote debugging and more architectures on the roadmap. Unlike traditional debuggers that parse PDB or DWARF directly, it converts them on-demand into the custom RAD Debug Info (RDI) format, which is optimized for fast parsing of huge debug datasets. The project also ships the RAD Linker, a high-performance MSVC-compatible linker that delivers roughly 50% faster link times on gigantic executables and can natively emit RDI to avoid broken PDBs overflowing 32-bit tables. Compared with WinDbg, it provides a far more modern and approachable graphical experience; compared with the Visual Studio debugger, it is lightweight, standalone, and built for multi-process workflows. The project is currently in alpha, so users should expect rough edges and are encouraged to report issues.
Troubleshooting & FAQ (1)
TroubleshootingWhy is there no usage README in the build folder after compiling raddebugger?
The usage README is generated by the metaprogram build, which was disabled by default. To generate it manually, pass meta to the build script:
./build.sh metaThis creates the README in the build folder. The issue was later fixed by the maintainer, so first-time builds of newer versions generate the README automatically.
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Getting Started
Install the software
Double-click the downloaded installer and follow the prompts
Download the latest pre-built archive from the GitHub Releases page
Extract it and run raddbg.exe on Windows or raddbg on Linux
Open the target executable via the File menu or drag and drop it into the window
- Download the latest pre-built archive from the GitHub Releases page
- Extract it and run raddbg.exe on Windows or raddbg on Linux
- Open the target executable via the File menu or drag and drop it into the window
SHA-256 checksum verified
Checksum extracted from GitHub official Release page
SHA256 Checksum
a9ccb5f4894b530ec22019ae39128d24226ec377b9861c718fa701121eb80879This checksum is extracted from the GitHub Release page. Verify file integrity after download.
All SHA-256 checksums on this platform are extracted from the project's official GitHub Release page, without any modification. You can independently verify them on the GitHub Releases page.
Open Source Transparency
View GitHub SourceUninstall Info
The debugger is portable and requires no installation. Simply delete the extracted folder to uninstall completely; no registry entries or system leftovers remain.
No Extra Dependencies
Ready to use after download. No additional runtime required.
Having issues? Check the FAQ below
1 FAQ
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