Acid Groovebox Beat maker

🎛️ Acid Groovebox — the pocket Acid house machine

Make acid, techno and house beats anywhere. Acid Groovebox brings together a 303-inspired bassline, a punchy drum machine, sample pads, a paraphonic acid lead and a lush pad synth in one app, built for jamming — and best of all, no ads!

🔊 ACID BASS (303-style)
• Cutoff, resonance, env mod, decay, accent & glide
• Waveforms: saw, square, triangle, PWM
• Step sequencer with slides, accents and note length
• Piano panel: play a note, it sounds while you hold it, slide your finger for a glide
• Arpeggiator (pro)
Not sure what these mean? No worries — just play with the knobs and you'll get it in no time!

🥁 DRUM MACHINE
• 7 tracks: kick, snare, clap, hi-hats, crash, ride
• 3 velocity levels per step, swing — choose which tracks it affects (pro)
• Double notes (pro)
• Load your own samples & build custom kits (pro)
• Live snare/clap rolls for fills

🎹 ACID LEAD
• Paraphonic 3-oscillator synth with a snappy filter
• Per-step notes, chords, harmonic flavors & glide
• Macros: bite, decay, drive, spread, air, volume
• Arpeggiator (pro)

🌫️ ATMO — PAD SYNTH (pro)
• Lay lush chord pads under your set: held chords or short stabs
• 12 factory sounds, expressive macros and a full advanced sound editor
• Its own sequencer, mixer track and automations — the dice builds a progression in key

✍️ AUTOMATIONS (pro)
• Draw curves with your finger on bass, lead and ATMO parameters and watch the knobs move

🎚️ JAM WITH LIVE EFFECTS
• Hands-on filter with an X/Y pad
• Two assignable LFOs per instrument for dynamic variations (pro)
• Stereo reverb and ping-pong delay, assignable per instrument (pro)
• Build 16- or 32-step patterns (pro), switch between patterns A to D (pro) and copy a full pattern in one tap

🎛️ MIXER
• Volume, pan and level meters for every track
• 4-band EQ on every track and on the master (track EQ in pro)
• Bass ducks under the kick for a punchier, cleaner mix

🎤 SAMPLE PADS
• 1 pad to record with your phone's mic (3 in pro mode)
• 3 pads to load your own samples (6 in pro mode)
• Touch pan: the position of your finger sets the pan
• Dedicated pad reverb, delay and beat repeat

🎲 INSTANT INSPIRATION
• One tap on the dice instantly generates a full set with drums, bass, lead and ATMO — all in key

💾 AND OF COURSE
• Save, load, export and import your sets
• Export your loops as audio to share them
• 100% offline — no account, no ads!

Whether you're a bedroom producer, a 303 lover, a techno head or just curious about beatmaking, Acid Groovebox turns an idea into an acid groove in seconds.

Acid Groovebox is an indie developer project, with no ads. To support me, unlock pro mode and spread the word to your friends!