Screenshot of the MONSTR plugin
MONSTR

MONSTR provides up to six bands of stereo width control to correct mix issues or use for creative effect.
Want to see MONSTR in action?
Check out our tips and demos on YouTube
Up to six independant bands
Screenshot of MONSTR with six bands
Quickly add and remove bands to suit any task.
Independent bypass, mute, and solo for each band
Screenshot of MONSTR with bands bypassed, muted, and soloed
Solo and mute buttons for each band make it easy to check your mix by isolating only the audio you're interested in, while the bypass buttons allow you to A/B each band independently.
Animated stereo width meter for each band
Screenshot of MONSTR's stereo width meters
Mixing with only your ears is great, but the visual meters for each band are designed to provide an extra level of feedback and give you confidence in your mix decisions.
MONSTR is an open source project released under the GPL
You can find the source code here: https://github.com/jd-13/MONSTR-Stereo-Imaging
I make every effort to ensure these products are reliable and great to use however I am only a single developer, so can't exhustively test every platform and use case.
As such all products are provided without any warranty or promise of fitness for purpose.