TCMalloc is an inspection tool that lets you parse and inspect tcmalloc internals, and detect lost memory, meaning memory which is not reachable via any (internal) pointers.
You can download it from the following link: https://packetstormsecurity.com/files/download/160140/tcmalloc-inspector-20201119.zip
Source: https://packetstormsecurity.com/files/160140/TCMalloc-Inspector-Tool.html