There are a staggering 247 free plugins listed on this page. To make sense of it all, we divided them into categories: Synths, Drums, Guitar, Compressors, EQ, Reverb and Delay, Overdrive and Saturation, Vocals, Filters, Effects and Utilities. Use the table of contents to see the lists of VSTs by category. Best Free Synth VSTs. Best Free Drum VSTs.