Overtoon is an artist-run platform for practitioners working with sound, supporting the production of and research into sound-based practices, as well as their dissemination.

Overtoon was founded in 2005 by Aernoudt Jacobs. Since 2013 Christoph De Boeck and Aernoudt Jacobs led the organisation as co-artistic directors through 2022. In November 2022, Bill Dietz was appointed artistic director.

One of Lydgalleriet's partner organisations in the Creative EU project Oscillations– Exercises in Resilience.