INBOIL — Browser-based groove box

Make music anywhere, right now

No install. No signup. Just play.

Sound Engines

20 voices — from drum machines to FM percussion and wavetable synths, plus a polyphonic sampler with 90 built-in samples and a multi-sampled grand piano. Choose a different engine for each track.

909K909 Kick
808K808 Kick
SNARESnare
CLAPClap
C.HHClosed HH
O.HHOpen HH
CYMCymbal
TOMTom
RIMRimshot
BELLCowbell
SHKRShaker
FMDFM Drum
303Bass 303
BASSAnalog
LEADSynth
FMFM Synth
WAVEWavetable
CRSHCrash
RIDERide
SMPLSampler
Wavetable SYNTH

Graphical Sequencer

Build your song structure by connecting patterns — like a song mode you can see and rearrange. Add branches so arrangements play differently every time. Fills, reverse, and breaks for live performance feel.

FX Pad

Drag effect nodes across a 2D pad to shape your sound in real time. Reverb, delay, glitch, and granular — each with three flavours. The canvas reacts to your audio, drawing constellations between active effects.

VERB
DLY
GLT
GRN

Multi-Device Jam

Turn your phone into a live controller. Run INBOIL on your PC, open the same URL on your phone, enter a short room code — and your phone becomes a touch controller for fills, parameters, and step edits. Everything syncs in real time over WebRTC. Share the code with a friend and they can join too. No app install. No setup.

HOST Audio + DAW WebRTC P2P A3F7KN2X GUEST Controller PC / Laptop Phone / Tablet

Specs

Tracks
16
Voices
20
14 drums, 5 synths, sampler + 90 factory samples (< 2 MB)
Sequencer
Grid / Tracker / Piano Roll
Steps
2 – 64
Per-track step scale (1/8 – 1/32), polymetric
Effects
4 sends + 3-band EQ + master comp
Reverb, Delay, Glitch, Granular
Graphical Sequencer
Node-based arrangement
Song mode with branching and modifiers
Export
WAV / MIDI / JSON
MIDI
USB MIDI input
Web MIDI API (Chrome / Edge)
Storage
Browser local
IndexedDB + OPFS audio pool, no account needed
Multi-Device
Phone as live controller
WebRTC P2P, no app install
Price
Free
Browser
Chrome / Firefox / Safari (latest)
Web Audio + AudioWorklet required

Ready to make some noise?

No install. No signup. Just open and play.

Built by one person, for everyone

INBOIL is a solo passion project — designed, coded, and sound-designed by a single developer. Every feature you see here was built from scratch: the synth engines, the graphical sequencer, the FX pad, even this website.

I believe music tools should be accessible, instant, and fun.

If INBOIL brings you joy, consider supporting its development.

Your contribution helps keep the project free and fuels new features.