eqMac is a system-wide audio equalizer and volume mixer for macOS that processes all audio output through a unified interface.
The tool solves the problem of limited audio control on macOS by intercepting system audio at a low level using Core Audio and AVAudioEngine. It provides basic equalization through bass, mids, and treble controls alongside a fixed ten-band advanced equalizer, volume boosting, and per-device volume balancing including HDMI outputs. The free tier includes integration with AutoEQ for automatic headphone equalization based on frequency response profiles. Pro features add unlimited customizable filter bands, a spectrum analyzer, third-party AudioUnit hosting, spatial audio simulation, and per-application volume mixing.
This tool suits anyone on macOS who wants centralized audio control without per-application settings. The free version provides essential equalization and volume management, while the Pro tier targets audio enthusiasts and professionals needing advanced filtering, multi-effect chains, and application-level mixing. The project explicitly notes that the repository contains only the free features from version 1.3.2, with newer releases maintained privately.
Development activity shows active community engagement through a Discord server where the maintainer participates regularly. The project maintains an open issue tracker and encourages community discussion there. A public roadmap exists with community voting on feature priorities, indicating responsiveness to user requests. The split between open-source free features and private Pro development reflects a deliberate choice to balance transparency with maintenance burden.
