EqualTune LikeEqualTune is a free system-wide audio equalizer for Windows. Shape everything your PC plays with a live parametric EQ, presets, per-app and per-device profiles, a live spectrum, and global hotkeys.Cost / LicenseFreeOpen Source (GPL-3.0)SinceNewPlatformsWindows+3Best alternatives are FxSoundandEqualizer APO9 alternatives