FM-Four  free  Lo-Fizer  free

Four operator FM Synthesis VSTi

Freeware virtual rack designed to add some nice lo-fi effects to your recordings.

 Bleep'  free  Vinyl  free

Virtual synthesizer which inspired by the sound of MOS Technology SID

Virtual effect plug-in that emulates the sounds of old vinyl players.

 Bend Box  free  Pedals  free

Software synthesizer that emulates a circuit-bending device. Can be useful for making experiments and for creating various noise FX. All knobs can be tweaked manually or thru easily assignable MIDI controllers. MIDI Automation is also available. With Bend Box you can get wide range of noises: from the soft gurgling to ringing grinding, or even strange melodical timbres.

Freeware guitar amp and effects processor with a more than 30 different devices.

 Harmonaut  free  Get Lost, Singer!  free

Freeware virtual instrument that implements an additive synthesis with 32 drawable harmonics.

Virtual effect plug-in which allows you to remove vocals from songs. It works on the principle of "central channel subtraction", where singer's voice is usually located. In addition, the plug-in is able to preserve bass and drums, which are also often located in the center of the stereo space and may suffer along with the voice.

 Stereo Enhancer  free

Free stereo enhancer and mono to stereo converter.