StudioZIO Mastering Suite
StudioZIO Mastering Suite: A capable free mastering suite for Mac users who need detailed metering. Ranked #14 of 33 in Audio Mastering Software by our editors (7.2/10); pricing: Free plan; best for free mastering with detailed metering.
At a glance
- Editor score7.2 / 10
- PricingFree plan
- Best forFree mastering with detailed metering
- Free planYes
- Paid fromFree
- Workflow typeBoth
- Facts checked20 Sep 2026
Where it wins
- Nine-stage signal path covers processing through delivery.
- Persistent loudness, true-peak, stereo-correlation, and quality meters.
- Free permanently for personal and commercial music productions.
Where it doesn't
- Supports macOS only, with no Windows build planned.
- No batch processing or sequencing workflow.
- Plugin and standalone versions require a Mac-based setup.
Our verdict on StudioZIO Mastering Suite
StudioZIO Mastering Suite is a free macOS application and plug-in for musicians, producers, and engineers who want mastering processing and delivery controls in one signal path. Its nine stages cover mid/side processing, saturation, Pink Match spectral correction, glue compression, maximization, tone EQ, clipping, true-peak limiting, and output delivery. Standalone, Audio Unit, VST3, and AAX versions support different Mac-based workflows.
The pricing is straightforward: the Free plan costs nothing permanently, requires no licence key or account, and permits personal and commercial music productions. The suite is distributed as a signed and notarized universal installer for Apple Silicon and Intel Macs. It supports AU, VST3, and AAX plug-in formats alongside standalone operation, but the documented platform coverage is macOS only, and no Windows build is planned. That makes it a focused choice for Mac users rather than a cross-platform mastering option.
Its main strength is the combination of processing depth and metering. Pink Match includes 20-second learning, glue compression provides a gain-reduction trace, the clipper offers soft- and hard-clip modes, and the true-peak limiter includes ceiling and release controls. Output controls cover dither, word length, and delivered true-peak levels, while the meters show LUFS integrated, short-term, and momentary loudness, true peak in dBTP, stereo correlation, and quality. Choose it for free Mac mastering with detailed level and delivery visibility; choose another tool if Windows support, batch processing, or sequencing is required.
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StudioZIO Mastering Suite pricing
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StudioZIO Mastering Suite fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Workflow type | Both |
| Loudness standards | LUFS integrated, short-term and momentary loudness; true peak in dBTP |
| Stereo processing | Yes |
| Album sequencing | No |
| Batch processing | No |
| Supported plug-in formats | AU, VST3, AAX |
| Delivery formats | Not verified |
| Deployment | Desktop |
| Platforms | macOS |
| Support | Email, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan (source) |
| Website | studioziomasteringsuite.vercel.app |
| Facts checked | 20 Sep 2026 |
Alternatives to StudioZIO Mastering Suite
- iZotope OzoneA broad professional mastering suite with AI assistance, deep editing, and reference tools.9.4
- WaveLabA broad mastering suite with capable Elements and Pro editions for Windows and macOS.9.2
- Waves Abbey Road TG Mastering ChainA focused mastering plug-in for modular console-style processing across major DAWs.9.0
See all StudioZIO Mastering Suite alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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