visual drum machine for the streets
Lite
CHOPPL Lite: 8 pads, 1 bank, browser export. Unlock Pro desktop

Library

Drop video/audio/images here or tap to load clips

Pads

Loaded pads keep looping until another pad or STOP is hit.
Bank A

MIDI

StatusChrome/Edge on localhost or HTTPS

Slice

Source

Sequencer

Swing 0%

Track

Volume
Detected BPM --

MIDI Monitor

No MIDI activity yet

MIDI Learn

Click LEARN, then move a MIDI control.

Mappings

Scene Bank

Import / Export

Saved Scenes

No active scene

Audio Modulators

StatusListening to master output
Recording
Bass 0.00
Mid 0.00
High 0.00
Peak 0.00
RMS 0.00
Beat 0.00

Tuning

Audio Sync

Punchier BlackHole / Ableton response

Routes

Layers

Audio FX

Master
Drive
Lo Cut
Hi Cut
Delay
Feedback

Visual FX

Preset
Amount
Beat
Energy
Shake
Color

Overlays

Thickness
Premium BuildExports are clean unless overlays are enabled.

Record

Aspect
ExportLite exports include a CHOPPL Lite watermark. Pro exports are clean.
Recorder30fps · balanced bitrate

Exports prefer browser-native MP4 when available, with WebM fallback. Higher quality makes larger files and may use more CPU.

Quick Start

1. Load clipsDrop video, audio, or images into Library, then use AUTO FILL PADS or tap a pad and choose a clip.
2. PlayUse pads, keyboard keys, MIDI, or the sequencer. STOP stops playback and recording.
3. LayersLayer presets are the fastest way in. Keep Layer 1 as the main clip, then use upper layers for fades, hits, and blends.
4. RecordPick aspect and quality in REC, hit START, then trigger a pad. Export starts on the first visual hit.

Max for Live Bridge (Pro)

Included with ProThe Max for Live bridge, desktop localhost bridge, OSC, MIDI routing, and clean output window are part of CHOPPL Pro.
Lite workflowUse CHOPPL Lite directly in the browser with clips, pads, slicing, sequencer, visual FX, and watermarked exports.

Ableton Audio Into CHOPPL

Mac Audio MIDI SetupCreate a Multi-Output Device with your speakers/interface and BlackHole checked. Set your Mac output to that device.
AbletonSet Audio Output Device to the Multi-Output Device, or route audio to BlackHole from your interface setup.
CHOPPLIn AUDIO, choose Microphone / external input, select BlackHole or the aggregate input, then enable RECORD EXT AUDIO ON for exports.

Live Output

Pop-out windowUse OUTPUT in the top bar for OBS, a projector, or a second display. The pop-out contains only visuals.
FullscreenClick the pop-out canvas to request fullscreen, then drag that window to the projector or capture it in OBS.