Show HN: I built a WebMIDI sequencer to control my hardware synths

Show HN (score: 7)
Found: December 11, 2025
ID: 2704

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Show HN: I built a WebMIDI sequencer to control my hardware synths Hey HN,

I’m an ex-Google engineer trying to get back into music production.

I needed a way to sequence my hardware synths using AI contexts without constantly switching windows, so I built this.

It runs entirely in the browser using WebMIDI. No login required. It connects to your local MIDI devices (if you're on Chrome/Edge) and lets you generate patterns.

Tech stack: [React / WebMIDI API / etc].

Link: www.simplychris.ai/droplets

Code is a bit messy, but it works. Feedback welcome.

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