What it is

Plug your guitar into your Mac and it becomes the amp.

Guitar4mp runs amp and effects processing live on your Mac. Plug your instrument in through an audio interface and you're playing through real amp tone immediately: no combo amp, no pedalboard. The processing happens on the machine you already have open.

It also tunes. Open the app, pluck a string, and Guitar4mp reads the pitch in real time, so you're not digging around for a separate tuner pedal or app. Guitar4mp was built by a guitar player, for the way players actually practice: it opens fast and needs no setup, ready before you've finished plugging in.

Amp modeling

Real tone processed live on your Mac, no cabinet required.

Effects chain

Drive, reverb, delay, and more, without a pedalboard.

Built-in tuner

Reads pitch in real time, no separate app or pedal.