SMRTR ProgrammingAug 9, 2026lobste.rs

Building Groovie, an Advanced Web-Based Drum Machine / Beat Sequencer

SMRTR summary

Groovie is a free, open-source browser-based drum sequencer with 150+ samples, polyrhythm support, effects, and MIDI clock output. Projects encode into shareable URLs under 2000 characters using bit-packing — no backend or accounts required.

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