OTT: free compressor plugin by Xfer Records
Upward and downward multiband compression. The famous "make it pop" plugin.
Opens Xfer Records's own site.

Put SCRAMBLE. on your drums, 808s and vocals
One button rolls a new FX chain: glitch, stutter, tape stop, chops, reverb, delay and vocal tune. There are 43,252,003,274,489,856,000 possible chains, the same count as the positions of a 3x3 cube. Save 10,000 presets a day and 1% of them would take 118 billion years, over 8x the age of the universe.
Not just loops: drum buses, 808s and bass, hats, vocals and the master bus. 3,000+ downloads so far.
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OTT FAQ
Is OTT free?
Yes. OTT is a free compressor plugin from Xfer Records. The button on this page goes straight to the maker's own download page.
What is OTT good for?
Upward and downward multiband compression. The famous "make it pop" plugin.
What are the best alternatives to OTT?
Other free compressor plugins worth trying are TDR Kotelnikov, MJUC jr. and DC1A. See the full ranked list of free compressor plugins.