The dynamics of nanoscale electroplating between gold electrodes was investigated using a micro fabricated liquid cell mounted in a scanning transmission electron microscope. The electroplating was recorded in-situ for 10 minutes with a spatial resolution higher than 6 nm. At the beginning of the electroplating, gold spike-like structures of about 50 nanometers in size grew from an electrode, connected gold nanoclusters around them, and form three dimensional nanoscale structures. We visualized the elementary process of the gold electroplating, and believe that the results lead to the deeper understanding of electroplating at the nano scale. Main text Observing in-liquid phenomena with nanoscale resolution is challenging, but highly required in material science, chemistry, biology, and nanoelectronics. One of the large research fields of the in-liquid observation with nanoscale resolution is electrochemistry, which covers material corrosion, electroplating, batteries, capacitors, and biosensors. In