Aradaz has another cool well programmed free effect plugin for Windows called AradazMaximizer. It's a loudness maximizer plugin.
Features:
# 4 parameters (Input Gain Control, Gain Control Release, Maximize, Output)
# 44100 - 192000 Hz sample rate
# 64 bit internal processing
# low CPU usage
# GUI-less
Find other free software here.
"AradazMaximizer is an Auto Release Loudness Maximizer with manual input gain control. It can be used for mixing or mastering." Via