Ozone 12 EQ is a free, standalone equaliser lifted directly from iZotope’s flagship mastering suite. Designed with clarity, precision, and modern workflows in mind, it delivers mastering-level control without overwhelming complexity.
Whether you’re refining a mix bus or making focused tonal adjustments, Ozone 12 EQ offers clean, confident results that scale from corrective work to creative shaping.
At its core, Ozone mastering EQ is a highly transparent parametric EQ built for critical listening. The standout addition is Transient/Sustain mode, which lets you shape the attack and body of sounds independently.
This makes it possible to tighten transients without thinning sustain, or enhance weight and tone without exaggerating peaks, a powerful tool for drums, full mixes, and mastering chains.
Support for Mid/Side processing allows precise stereo image control, making it easy to clean up low-end in the sides, add presence to the mid channel, or subtly widen high frequencies while keeping the centre focused.
Ozone 12 EQ features a clean, intuitive interface with detailed visual feedback. The Delta button lets you audition exactly what the EQ is adding or removing, making fine-tuning faster and more confident.
This is especially useful for mastering and mix bus work, where subtle changes matter and over-processing is easy to miss.
Despite its pedigree, the plugin remains approachable. Bands are easy to place, curves are smooth and predictable, and the overall workflow encourages deliberate, informed decisions rather than guesswork.
A professional EQ designed for mix and mastering clarity.
It adds Transient/Sustain processing and Mid/Side control, allowing more advanced shaping than static EQ alone, particularly useful in mastering contexts.
Both. Its transparency and precision make it ideal for mastering, while the workflow is fast enough for everyday mix tasks.
Delta lets you monitor only the EQ’d signal being added or removed, helping you identify whether adjustments are genuinely improving the sound.
Ozone Mastering EQ focuses purely on equalisation. It doesn’t include dynamics, excitation, or limiting, making it lightweight and easy to integrate into any chain.