Are There Any True Random Number Generators Using Software? [closed]

Right now a True Random Number Generator (TRNG) is only possible through a Hardware Random Number Generator (HRNG) so I was wondering if there's any software random number generator that's a True Random Number Generator (TRNG) and not a Pseudo Random Number Generator (PRNG). If there are any True Random Number Generators (TRNGs) using software and not hardware how are they speed wise and how are hardware ones speed wise?