Ozone 12 replacements

[RustoMCSpit]

Ozone 12 Module	FOSS Plugin (Closest)	GitHub / Docs	Formats	Status	FOSS Alternatives / Notes
Equalizer	ZL Equalizer 2 (ZL-Audio)	https://github.com/ZL-Audio/ZLEqualizer	VST3 / LV2 / AU	✅ 24-band, M/S, min/lin/zero phase	LSP Parametric EQ (CLAP/LV2/VST3); FreeEQ8 (VST3/AU); fil4.lv2 (x42, LV2)
Dynamic EQ	ZL Equalizer 2	https://github.com/ZL-Audio/ZLEqualizer	VST3 / LV2 / AU	✅ Per-band dynamics, sidechain, EQ Match built in	LSP Dynamic Equalizer; ZamDynamicEQ (LV2/CLAP)
Maximizer (IRC 5)	x42 dpl.lv2	https://github.com/x42/dpl.lv2	LV2 / Standalone	✅ True-peak look-ahead limiter	LSP Limiter / Multiband Limiter; ZaMaximX2
Dynamics (Compressor)	LSP Dynamics Processor	https://github.com/lsp-plugins/lsp-plugins	CLAP / LV2 / VST2 / VST3	✅	Luna Co. Multi-Comp; ZL Compressor
Imager (Stereo Width)	InstaWidth (hariel1985)	https://github.com/hariel1985/InstaWidth	VST3 / LV2 / AU	✅ 3-band M/S width + monomaker + goniometer + correlation	MONSTR; StereoWidener; LSP Mid-Side plugins
Exciter	Airwindows Exciter / TripleSpread	https://github.com/airwindows/airwindows	LV2 / VST3 / CLAP / AU	✅ Multiple saturation modes	Wolf Shaper; LSP Exciter
Vintage Tape	CHOW Tape Model	https://github.com/jatinchowdhury18/AnalogTapeModel	VST / VST3 / AU / CLAP / LV2	✅ Physical model of Sony TC-260 / tape machines; wow, flutter, noise, bias	TapeMachine; Airwindows Tape / ToTape6
Vintage Compressor	Luna Co. Multi-Comp	https://luna-co-software.github.io/lunacoaudio.github.io/plugins/multi-comp/	VST3 / LV2 / AU	✅ Vintage FET + Opto + VCA-bus modes	Airwindows Pressure6 / VariMu; Valentine
Vintage Limiter	x42 dpl.lv2	https://github.com/x42/dpl.lv2	LV2	✅ Clean peak limiter	Airwindows Vintage Limiter
Vintage EQ	Airwindows Air / BrightAmbience / HightPass	https://github.com/airwindows/airwindows	LV2 / VST3 / CLAP / AU	✅ Vintage EQ character; no exact Pultec-style FOSS	fil4.lv2; LSP Graphic EQ
Stabilizer (Tonal Balance)	ZL Equalizer 2 — EQ Match mode	https://github.com/ZL-Audio/ZLEqualizer	VST3 / LV2 / AU	⚠️ Manual reference matching only	No automated real-time tonal balancing FOSS plugin matches Ozone's AI-driven Stabilizer
Match EQ	ZL Equalizer 2 — EQ Match	https://github.com/ZL-Audio/ZLEqualizer	VST3 / LV2 / AU	✅ Reference-curve matching in-plugin	FreeEQ8 has match EQ planned
Stem EQ	demucs-rs + EQ in separate chain	https://github.com/nikhilunni/demucs-rs	VST3 / CLAP	⚠️ Separate stem separation + EQ workflow	Demucs CLI + any EQ; no unified FOSS stem-EQ plugin
Stem Focus	demucs-rs	https://github.com/nikhilunni/demucs-rs	VST3 / CLAP	⚠️ Near-real-time; macOS-focused	No FOSS plugin does per-stem effects routing in mastering context
Bass Control	LSP Multiband Compressor + InstaWidth	https://github.com/lsp-plugins/lsp-plugins	CLAP / LV2 / VST3	⚠️ Manual; no AI low-end analysis	No single FOSS plugin replicates Ozone AI-assisted bass visualization
Low End Focus	ZamDynamicEQ	https://github.com/zamaudio/zam-plugins	LV2 / CLAP	⚠️ Manual dynamic EQ on low bands	No direct FOSS equivalent of Ozone AI low-end contrast adjustment
Clarity	None	—	—	❌	No FOSS equivalent; spectral adaptive energy optimisation is unique to Ozone
Impact (Transient)	Whetstone	https://github.com/unicornsasfuel/whetstone	VST3 / AU / LV2	✅ Band-specific transient shaper	LSP Transient Designer; Airwindows PurestSquish
Spectral Shaper	ZamDynamicEQ	https://github.com/zamaudio/zam-plugins	LV2 / CLAP	⚠️ Manual harshness reduction only	noise-repellent can reduce spectral harshness
Unlimiter (ML de-limiter)	None	—	—	❌	No FOSS equivalent; ML dynamic restoration is unique to iZotope
Master Rebalance (Vocal Balance)	None (plugin)	—	—	❌	Demucs CLI can perform offline stem rebalancing
Codec Preview	None	—	—	❌	No FOSS real-time codec preview plugin exists
Tonal Balance Control 3	meters.lv2 + ZL Equalizer 2 FFT overlay	https://github.com/x42/meters.lv2	LV2	⚠️ Manual reference comparison only	No FOSS equivalent of genre-reference tonal balance AI overlay

[RustoMCSpit]

note for AI agent, when adding these plugins add a tag for the name of the module they are replacing

[kmturley]

Triaged the FOSS candidates referenced in this list.

Added (3):

Package	PR
InstaWidth (hariel1985)	#607
StereoWidener (orchidas)	#608
MONSTR (jd-13)	#609

MONSTR needed a hand-built entry: the source repo tags releases but ships no binaries — the real download (linked from the developer's own site) lives in a separate sibling repo (jd-13/wea-releases) as a single zip covering all three platforms. Verified per-platform architectures by downloading and inspecting the archive directly (mac universal arm64+x64, linux/windows x64-only).

Already in the registry, current — no action needed (9):

Package	Status
ZL Equalizer (ZL-Audio/ZLEqualizer)	Registered as zlequalizer2 at 1.1.0; upstream is at 1.2.2 (optional version bump)
lsp-plugins/lsp-plugins	Registered up to 1.2.29; upstream is at 1.2.33 (optional version bump)
airwindows/airwindows	Already registered
CHOW Tape Model (jatinchowdhury18/AnalogTapeModel)	Registered as chowdhury-dsp/chowtapemodel — matches upstream latest
Luna Co Multi-Comp	Already registered at luna-co-software/multi-comp
zamaudio/zam-plugins	Bundles ZamDynamicEQ — not separately distributable
nikhilunni/demucs-rs	Registered — matches upstream latest
unicornsasfuel/whetstone	Registered — matches upstream latest
wolf-plugins/wolf-shaper	Registered — matches upstream latest
garebear99/freeeq8 (FreeEQ8)	Already registered
zl-audio/zlcompressor (ZL Compressor)	Already registered

Already excluded, no new action (2):

Package	Status
x42/dpl.lv2	GitHub-mirror pattern, previously logged
x42/meters.lv2	GitHub-mirror pattern, previously logged

Unresolved:

"Valentine" (mentioned as a Vintage Compressor alternative) doesn't resolve to any FOSS project I could find — most likely a hardware/sound-character reference rather than an actual open-source repo.

No new exclusions this round, so nothing to add to the central tracker. Closing this out.