Built a free and open-source macOS EQ app that works without virtual devices and supports AutoEQ/REW profile importing.

Dev here. If you're using Apple Silicon on macOS 26 and have been searching for an EqualizerAPO replacement for macOS, this might be useful to you. Putting requirements up top since they're somewhat strict..

In a nutshell, GlassEQ applies EQ to your entire system output (any app, browser, Apple Music etc.) using Core Audio process taps. This means no virtual audio device, loopback driver or extra routing software, and you switch outputs in macOS like you normally would (not through the EQ app itself, which is how most macOS EQ apps work).

The part that's nice for multi-device setups is profiles are output-specific and auto-switch by device. Your HD650 correction loads on the desk amp, your AirPods curve loads when you switch to AirPods. No manual toggling.

- Parametric, 10-band, and 31-band graphic modes, live frequency-response graph, per-profile preamp + headroom indicator, soft-clip saturation instead of hard clipping.

- ~11 ms added latency, ~25–30 MB memory usage, real-time-safe DSP.

- Open source (MIT), sandboxed, no networking/telemetry.

Caveats to keep in mind: early alpha, macOS 26 and Apple Silicon only, ad-hoc signed (first launch gets blocked by Gatekeeper), stereo only, no AirPlay support yet.

https://github.com/juhokoskela/GlassEQ

Would love feedback from actual users, so thanks in advance for testing!