This paper presents a new simulator platform for basic electric circuits and shows the operation of these circuits in 3-D space. This simulator (the first in the literature) makes use of the advantages of 3-D graphing generated in Flash CS4 to provide an interactive work environment with the user. The simulator makes two types of simulations exclusive: dc and ac. In dc, the results presented are the nodal voltages and branch currents. In ac, it shows the magnitudes and phases of the nodal voltages of the circuit. The novelty of this simulator is the 3-D spatial geometry with the operation of electrical circuits. The advantage of presenting the results in a 3-D environment is to be able to observe and analyze quickly how nodal voltages and branch currents in dc are distributed on the circuit as a whole, as well as their magnitudes and phases of nodal voltages in ac. It is also expected that this new form of study of basic electric circuits will open a new way to facilitate the understanding of these concepts to engineering students. The simulator runs on the Internet through any browser. The electrical analysis values are the same as PSpice.