Density mkIII is a free bus compressor effect plugin for Windows PC.
Density is a Bus Compressor that offers smooth and versatile dynamic processing on the stereo bus. It isn't modeled after any specific outboard gear but rather incorporates some proven dynamic shaping approaches from the past, combined in a seamless fashion with some much more modern concepts in audio processing - the best of both worlds.
MBandPass is a free virtual effect plugin for Windows and Mac (VST/AU).
MBandPass is a filter plugin containing a high-pass and low-pass filters with slopes up to 120dB/oct. Using its 2 extremely versatile modulators it becomes a powerful filter, which can follow a simple LFO, react to input levels, MIDI, input pitch and much more.
HybridReverb2 is a free VST effect plug-in for Windows PC and Mac OS X.
HybridReverb2 is a convolution-based reverberation effect which combines the superior sound quality of a convolution reverb with the tuning capability of a feedback delay network. The sound quality of a convolution reverb depends on the quality of the used room impulse responses.
PPD Echobox, a freeware delay VST effect plugin for Windows.
The PPD Echobox VST effect plugin from Minimal System Instruments is a simple yet elegant workhorse echo/delay. Modelled on analogue echo/delay signal paths this plugin will give you the classic sound sought after by many producers.
The Pilgrim is a free virtual effect plug-in for Windows, Linux and Mac (VST/AU).
The Pilgrim is a filter ideal for both live and studio situations. It has a high-pass and low-pass filter programmed into one dial, and allows a seamless sweep between the two. It works similar to the 'Pioneer DJM' mixers, albeit with a little extra functionality: a wet/dry dial which can also be used as a basic equaliser/shelf filter. The frequency pass range is from 60Hz (lowpass) to 19kHz (highpass).
Equilibre is a free VST effect plug-in for Windows PC.
Equilibre uses double precision and oversampling in the critical parts of the filter structure. This is a good sounding equalizer with minimal digital artifacts, firm bass and analog shaped curves for airy high frequencies. It has a practical and intuitive GUI. Well suited for mixing and mastering.
jsCompShaper is a freeware compressor effect plug-in for Windows.
Yet another compressor, but this one has the ability to morph between soft-knee compression and waveshaping as desired. Furthermore, it provides pre-/post-emphasis filtering (similar to a side-chain filter) and a more analog-like attack than jsComp.
jsCompShaper is a freeware VST effect plugin for Windows (32/64bit).