Groovie

What it does

Claude Code

The repository includes a Claude Code skill that can create a song and return a shareable link.checked 9 Oct 2026

Intended audience

The maker describes the project as a tool for teaching rhythm and music production and for enthusiasts to sketch ideas.checked 9 Oct 2026

License

The code is distributed under the MIT license and the samples under the CC0 license.checked 9 Oct 2026

Local setup

To run Groovie locally, the repository says to clone it and serve it over HTTP; the included development server requires Python 3.checked 9 Oct 2026

MIDI integration

Groovie can send MIDI start, stop, and clock signals to connected devices; MIDI clock output is limited to Chrome and other Chromium browsers unless Firefox has an add-on installed.checked 9 Oct 2026

No account or install

The project says it has no ads, requires no account, and has nothing to install.checked 9 Oct 2026

Purpose

Groovie is a free, open-source drum and beat sequencer that runs in a browser.checked 9 Oct 2026

Responsive use

The browser app works on desktop, tablets, and mobile phones.checked 9 Oct 2026

Samples

Groovie includes more than 150 public-domain CC0 samples, including drums, percussion, vocals, game sounds, and other sounds.checked 9 Oct 2026

Sequencing

Patterns can have 1 to 64 steps and up to 16 rows, with up to 64 patterns in a project.checked 9 Oct 2026

Song sharing

A shared link encodes the whole project in the URL hash, so others can play and remix it without the project being uploaded.checked 9 Oct 2026

Sound controls

The app provides per-row sample, panning, level, and delay-send controls, plus a tempo-synced delay and a whole-mix filter.checked 9 Oct 2026

Timing

Tempo ranges from 40 to 280 BPM, with swing and humanize controls.checked 9 Oct 2026