mpump is a free browser drum machine, groovebox, and step sequencer for making beats and sharing them as links. A recipient can open a shared groove, edit it, and pass along another version. Its instruments include drums, bass, and synth, with a mixer and effects using real-time synthesis. Patterns, arpeggiators, and Euclidean rhythms provide sequencing options. The project documents MIDI clock synchronization and an Ableton Link bridge for Ableton Live, Logic Pro, Bitwig, Traktor, djay, and other Link-enabled apps. It supports WAV recording and JSON session export and import. The PWA can work offline after its first load. Live Jam supports up to 4 peers and Live Set up to 49 listeners, but both are opt-in and require users to provide their own relay while the public hosted relay is offline. The maker says there are no accounts or personal tracking and that music stays on the user's device. mpump runs on Android, iOS, and the web; its source is published under AGPL-3.0.
Who it is for
mpump suits beat makers who want a browser-based sequencer with shareable grooves, MIDI clock synchronization, and WAV recording. Live collaboration suits users able to provide their own relay.
What is good
- Shared links let recipients revise grooves.
- Includes drums, bass, synth, mixer, and effects.
- Supports MIDI clock and an Ableton Link bridge.
- PWA supports offline use after first load.
What to know first
- Live collaboration requires users' own relay.
- The public hosted relay is offline.
- Live Jam and Live Set are opt-in.
Verdict
mpump combines beat-making tools with link-based sharing and documented MIDI and Ableton Link integrations. Its live collaboration options currently depend on a user-provided relay.
mpump plans and pricing
All plansCompared on drum machine software
- Free plan
- Yes
- Platform
- web
- Sequencing mode
- hybrid
- MIDI support
- Yes
- Sample import
- Yes
- Live performance tools
- Yes
