Equaliser review
A free, open-source 64-band EQ for system-wide audio control on Apple Silicon Macs.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Equaliser is a free, open-source audio equalizer for Apple Silicon Macs running macOS 15 or later. It processes audio system-wide, allowing sound from multiple applications to pass through one audio pipeline. The app runs from the macOS menu bar and offers up to 64 adjustable parametric bands, independent left and right channel EQ, factory presets, A/B comparison against a flat response, and real-time input and output level meters. It processes audio locally without recording, storing, or transmitting it.
Pricing is straightforward: Equaliser is free forever, with no paid tiers described. Its main value comes from the combination of system-wide processing and detailed control rather than from a broader product package. Automatic audio routing through a custom audio driver is included, helping the equalizer sit between applications and output devices. That makes it a focused fit for Mac users who want one application to shape audio across their desktop instead of adjusting each audio app separately.
The standout feature is the high-band parametric EQ, supported by independent channel control and A/B comparison for checking changes against a flat response. Room EQ Wizard filter import adds a path for applying measurement-based filters, while EasyEffects preset import and export can help move settings between compatible workflows. Equaliser is a strong choice for Apple Silicon Mac users who want an open-source, system-wide equalizer with extensive band control. Users on other operating systems, older Mac hardware, or macOS versions before 15 should choose an alternative that supports their platform.
Equaliser pros and cons
- Where it wins
- System-wide processing across multiple applications
- Up to 64-band parametric EQ with independent channel control
- Room EQ Wizard and EasyEffects preset support
- Where it doesn't
- Requires Apple Silicon hardware
- Requires macOS 15 or later
- Limited to macOS devices
Equaliser fact sheet, pricing and score →
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