A splitter pedal is used to divide the guitar signal into two or more separate outputs, allowing you to send the signal to multiple destinations, such as different amplifiers, effects chains, or recording devices. This is useful for creating dual-amp setups, routing to various pedals, or achieving more complex soundscapes. Splitter pedals can offer features like isolated outputs to prevent signal interference or ground loops, which can cause unwanted noise when using multiple devices.

Splitter pedals are commonly used in live performances and studio setups for flexibility in signal routing, allowing players to experiment with different tones or effects simultaneously. Some splitter pedals also have volume control or phase reversal features to ensure the signal remains clean and balanced when split.