Free VST/AU Plugins

We collect some very good VST/AU Plugins which are free!


UpStereo is a simple, useful tool - it makes your mixes bigger, in stereo width and loudness.
Using three basic basic systems:
1. A fixed frequency EQ designed to lift the highest audio frequencies, and boost the bass.
2. A stereo width unit, for expanding stereo sounds so they appear wider and fatter. At extreme levels other characteristics are also brought out of the sound, so this can also be used as a tonal control for individual instruments. This also has a mono setting, useful for squashing up those aggressive samples that take over the mix.
3. A Loud switch that raises the waveform to the limits in a smooth curve. This saturation gives the mix a more perceived loudness, without clipping.
There's also an option for overdriving this effect, distorting the waveform towards the maximum, and can be used to create a raw punch to the sound.

These stages create an overall loudness effect on the final output, so a gain control is included to keep the limits in check.

The main 'bubble' display on the plug-in is really a basic meter, when one of the stereo halves flash red, then the output is being clipped. Try and keep the levels so the red flashes only occasionally, this enables the loudness control to work at its maximum.

Colour and light changes are achieved my dragging the central meter-ball, using ctrl or shift to flow through colours. Maximum right/up drag returns the colour to white.


Analog modeled EQ
Improved for deeper cuts
Mastering and analog modes
"Keep Gain" mode to avoid overal gain changes
Low CPU-usage


The TDR Feedback Compressor II is a major design update of its critically acclaimed predecessor. The compressor is dedicated to compressing the highest fidelity stereo program (2-buss), but equally shines in classic mixing tasks.

Most modern compressors analyze the input signal to control gain reduction, using a “feed-forward� topology. TDR Feedback Compressor II, however, analyzes the output. This approach delivers an unobtrusive and highly musical compression characteristic.

TDR Feedback Compressor II takes this traditional compression topology to new heights with a highly flexible, yet intuitive control scheme. The compressor has been carefully tuned for intuitive and musical operation for almost every situation.

We want to emphasize the fact that the processor neither tries to emulate any previously available device, nor does it follow popular trends like “virtual analogue�, “circuit modeling� or similar buzz words. This is a proud digital processor, made with an immense amount of love and care.
Notable features

Beautiful “Feed-Back Compression� sound and behavior
64bit floating point precision for all relevant calculations
Multi-rate processing structure for highest accuracy, critical operations run up to 8 times the audio rate
Delta oversampled signal path (bit transparent at 0dB gain reduction)
Three side-chain filter slopes: 3dB/Oct, 6dB/Oct and 12dB/Oct
Super fast and natural sounding compression
Unique control scheme with independent release controls for peak and RMS events, as well as a compression Crest Factor control
Advanced stereo linking options optimized for the stereo bus
Delta preview mode to preview the difference between compressed and original signal
Latency compensated parallel bypass (i.e. processing not interrupted)

Offers a wide array of controls to dial the sound in just right and leaves you with the original sound, only louder.
Lean Audio (A+ rating)
TDR Feedback Compressor II is among the best software compressors for bus use out there.
This thing might be the best compressor I have, even better than my Slate Virtual Buss Compressors, Vintage Warmer and Kush UBK-1. It’s absurdly good on the mixbuss, and has the kind of weight only hardware typically has
Dave Edwards
Features detailed control of compression behaviour, extremely low distortion and almost 'invisible' compression
A highly competent compressor plugin that can stand proudly head to head with its paid alternatives