Brain-state-dependent and closed-loop brain stimulation applications based on EEG signals requires hardware and software with real-time EEG analysis capabilities. Traditionally, such tools had to be custom developed and setup by technical personnel with ample time for creating, debugging, and maintaining those solutions. The team behind sync2brain strives to provide a reliable, commercially available platform that allows researchers to focus on how to apply brain-state-dependent brain stimulation techniques without being tied up in technical development. By enabling neuroscience and medical research communities to apply brain stimulation based on the brain oscillation state, sync2brain provides tools to speed up translational research and develop better treatments for psychiatric and neurological diseases based on brain stimulation.