There are different simulators aimed at designing quantum circuits. Posing this question is to get familiar with the best ones. Your suggestions are really appreciated.
Undoubtedly, Quirk Simulator (https://algassert.com/quirk), however, it does not contemplate the noise in the quantum gates, therefore it is impossible to evaluate the fidelity in a Quantum Teleportation. Besides, it has some differences with a real implementation like on IBM Q Experience, always talking about of Quantum Teleportation, in particular, in the implementation of the CNOT+H inside the BSM.
In my opinion, the best simulator is a natural “quantum computer” of one’s own thinking. https://www.researchgate.net/publication/284350911_Strategia_resenia_otkrytyh _zadac_i_asimmetria_vrasenia_vokrug_tocki_vpravo_i_vlevo