Some of the best free EQs can be found on this site. They may not come with all the bells and whistles of the payware plugins but their sonic qualities are undisputed.
Not just another EQ: with its custom-made 4th order IIR filter, ColourEQ sounds unlike any other EQ you have ever come across. It comes with five bands of \”super parametric\” peaking filters, which means that there is one more parameter in addition to the traditional gain/width/frequency set that can influence the curve shape. These shapes cannot be reproduced by ordinary IIR equalizers. Further features include: adjustable GUI colours, freely resizable window size, internal 64 bit processing and low CPU usage. Available in Windows VST (32/64 bit), Windows/Mac RTAS and Mac VST/AU format (Intel, OSX 10.5 and higher).
The IIEQ is a free, fully parametric 10-band equalizer with its own, characteristic sound and low CPU consumption. The 1st and the 10th band are low and high shelf filters, respectively; all other bands are peak filters. Individual bands can be switched on and off (click on the small green buttons!). It is available for Windows (32/64 bit) and Mac (32 bit). Alternative GUIs are available for Windows 32bit only.
Sick and tired of huge GUIs taking up all screen space? Want an EQ that easily fits in your pocket but sounds just like the big guys? Then it’s time to meet SmallEQ! The world’s smallest 10-band EQ, sporting eight fully parametric bands plus one low- and one high-shelf filter on exactly 9135 square pixels. Controls from left to right: band choice, gain, frequency, width and overall gain.