NeuroKit ("nk") is an open source toolbox for physiological signal processing.

A few major updates have been released since:[5] NeuroKit has received the 2024 Commendation Award from the Society for the Improvement of Psychological Science (SIPS).

[6] NeuroKit2 includes tools to work with cardiac activity from electrocardiography (ECG) and photoplethysmography (PPG), electrodermal activity (EDA), respiratory (RSP), electromyography (EMG), and electrooculography (EOG) signals.

[10][11] For neurophysiological signals such as EEG, it supports microstates and frequency band analysis.

[12] The software was designed to be accessible to users without programming experience, with the possibility of using high-level functions to run entire preprocessing or analysis routines.