GDB vs RenderDoc

GDB is a free debugger for inspecting a program as it runs or after it crashes. It can launch programs, stop execution under specified conditions, examine the stopped state, and change program state for experimentation. A target can run on the same machine, remotely, or in a simulator. GDB runs on popular UNIX variants, Microsoft Windows, and macOS, and supports languages including C, C++, Rust, Go, Ada, Fortran, Assembly, and others. Debugging options include conditional and exception breakpoints, core dump debugging, and record-and-replay with forward and reverse execution on supported platforms. For remote debugging, gdbserver connects a program to GDB. The console interpreter and GDB/MI are available, while Python extensions and the Debugger Adapter Protocol require Python support at build time. GDB is part of the GNU Project and is free software under the GNU General Public License, which allows copying, adaptation, and redistribution with source access. Official releases are available from GNU and Sourceware, with signature verification through the GNU keyring. Version 18.1 was released on September 25, 2026.

RenderDoc is a frame-capture graphics debugger for graphics development, released under the MIT license and available free. It supports Vulkan, D3D11, D3D12, OpenGL, and OpenGL ES, with HLSL, GLSL, and SPIR-V listed among supported languages. Its listed platforms are Windows, Linux, and Android; Nintendo Switch support is noted for authorized developers using NintendoSDK. The API support table marks OpenGL 1.0–2.0 compatibility as supported, while D3D9/10 and Metal are unavailable. Linux support is limited to 64-bit x86. Windows users can choose 32-bit or 64-bit builds or a portable ZIP, and the 64-bit build can capture 32-bit programs. Stable and nightly binary releases are available; stable builds are recommended for new users because nightlies may be less stable. Documentation is online for the latest stable version and included as a CHM file in builds, with introductory videos also linked. The project lists GitHub issues, email, IRC, and Discord for questions and problems. RenderDoc is intended for debugging programs users created; its public support channels do not allow discussion of capturing programs they did not create.