I routinely use emulators to test dumps, VICE for C64, Sugarbox for CPC and WinUAE for Amiga. They work very well. Supposedly, the Spectaculator emulator for Spectrum supports CT RAW, but I didn't found a way to load those, converting the files to "IPF" with several tools (I know these are very different from the official ones) crashes the emulator.
I contacted the creator, but didn't get a reply, and the last version is from 2012. Is there something I ignore or there is no way of loading those on an emulator?