mpump is a browser drum machine, groovebox, and step sequencer for making beats and sharing them as links. Someone opening a shared beat can change the groove and send another version. Its browser instrument set includes drums, bass, synth, a mixer, and effects with real-time synthesis. Patterns, arpeggiators, and Euclidean rhythms provide sequencing tools. The project supports MIDI clock synchronization and an Ableton Link bridge for use with Ableton Live, Logic Pro, Bitwig, Traktor, djay, and other Link-enabled apps. Recordings can be saved as WAV, and sessions can be exported or imported as JSON. The PWA supports offline use after its first load. Live Jam supports up to 4 peers and Live Set supports up to 49 listeners, but both are opt-in and currently require users to provide their own relay because the public hosted relay is offline. The maker says mpump has no accounts or personal tracking and that music stays on the user's device. It is free on Android, iOS, and the web, and its source code is published under AGPL-3.0.
Who it is for
mpump suits beat-makers who want a browser-based sequencer with shareable grooves and MIDI or Ableton Link connections. It also supports offline use after the PWA's first load.
What is good
- Shared beat links let recipients change and resend grooves
- Includes drums, bass, synth, mixer, and effects
- Supports WAV recording and JSON session import/export
- Works offline after the PWA's first load
What to know first
- Live collaboration currently requires users to provide their own relay
- Public hosted relay is offline
Verdict
mpump combines browser-based beat making with shareable links, session export, and music-app synchronization. Live collaboration is available only with a user-provided relay while the public hosted relay remains offline.
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
