RenderDoc 0.91.0 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The actual developer of the free program is Crytek.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The most popular versions among the program users are 0.9 and 0.2. The software is included in Development Tools. Commonly, this program's installer has the following filenames: qrenderdoc.exe and renderdocui.exe etc. RenderDoc is suitable for 32-bit and 64-bit versions of Windows XP/7/8/10/Vista/11.
From the developer:
Renderdoc is a standalone program that can be used to capture and replay frames from any Windows application using Direct3D 11.0 or 11.1. It provides tools for deep analysis and graphics inspection, as well as detailed examination of API usage, allowing developers to locate bugs and problems in their programs.
You may want to check out more software, such as PCWH, Python - spyder or IDA Pro Free, which might be similar to RenderDoc.