I am not aware of any zero-payment solutions. These tools cost money to invent and develop so most of them are commercial. By GHS, developers of TimeMachine (T

I am not aware of any zero-payment solutions. These tools cost money to invent and develop so most of them are commercial. By GHS, developers of TimeMachine (TimeMachine created in ~2003), for C/C++: https://www.ghs.com/products/MULTI_IDE.html https://www.ghs.com/products/MULTI_IDE.html see “History viewer” By the developers of rr (rr created in ~2013) for C/C++: https://pernos.co/ https://pernos.co/ By former GHS employees for Python: https://functiontrace.com/ https://functiontrace.com/ Usable FOSS time travel debugging is new enough that no follow on FOSS visualization has been developed as far as I know.