There are various tools supporting HED tagging. If you are EEG researchers and familiar with the Matlab toolbox EEGLAB, you can install HEDTools plug-in for EEGLAB. Alternatively, you can also prepare a spreadsheet containing event codes and their associated HED tags and use HED validator to confirm your tagging.

Using HEDTools plug-in for EEGLAB

There are two ways to install the HEDTools EEGLAB plug-in:

  1. In EEGLAB, go to File > Manage EEGLAB extensions. Look for HEDTools and install it.
  2. Alternatively, you can download the plug-in zip file and extract it into EEGLAB plugins folder. Restart EEGLAB.

Next, check out the User Manual to start tagging your EEG data.

Using spreadsheet and HED validators

Follow instruction on the HED validator page to prepare your event-HED tag spreadsheet and validate it with the HED validator.

Tagging Strategy Guide

Once you are familiar with these ways to add HED tags to your data, check out our HED Tagging Strategy Guide to get a quick start on tagging your data.


HED was originally developed under HeadIT project at Swartz Center for Computational Neuroscience (SCCN) of the University of California, San Diego and funded by U.S. National Institutes of Health grants R01-MH084819 (Makeig, Grethe PIs) and R01-NS047293 (Makeig PI). HED development is now supported by The Cognition and Neuroergonomics Collaborative Technology Alliance (CaN CTA) program of U.S Army Research Laboratory (ARL).