Hi Product Hunt! 👋 I'm Denys, creator of SystemEQ. By day I assemble medical devices, and in my spare time I build audio tools for macOS. I created SystemEQ because Mac lacks a native system-wide equalizer. Existing commercial solutions cost $39+ or lock features behind recurring subscriptions. I wanted a fast, native, open-source tool that lets you fine-tune the sound for any headphones or speakers. ✨ Key highlights: • 10/31-band parametric EQ using Apple Accelerate (vDSP) for near-zero CPU footprint. • Offline AutoEQ database: 8,665 headphone models ready in one click. • Hearing calibration & room resonance sweep. • Real-time audio visualizer powered by ProjectM. • 100% free and open source (GPLv3) — no telemetry, no tracking, no subscriptions. Install via Homebrew: brew trust denzam/systemeq && brew install --cask denzam/systemeq/systemeq Or download from GitHub: https://github.com/denzam/System... I'd genuinely love your feedback, feature ideas, and thoughts on the app!

SystemEQ for Mac

Free system-wide parametric audio EQ for macOS

Free system-wide parametric audio EQ for macOS