Instruments I build and use. No plugins, no installs, nothing to download — every sound here is made from scratch in the browser, and everything exports real audio you can keep.
JSTJO · one person, no team, no label
Full production console. Eight synthesized drums, three synths, scale-locked piano roll, pattern chaining, and an offline WAV render.
Two-deck DJ app. BPM detection, three-band EQ, loop rolls, crossfader, and a mix recorder that captures the whole set.
Beatmatch under pressure. Read the crowd, ride the energy meter, and keep the floor moving without dropping the mix.
Pitch correction that actually detects pitch. YIN tracking, PSOLA shifting, scale-locked snapping, harmony voices — from natural to full hard tune.
Playable synth with morphing wavetables and a real modulation matrix. Twelve additive tables, FM, pulse width, stereo unison, two LFOs, dual envelopes, arpeggiator, and patch codes you can paste to anyone. Plug in a MIDI keyboard and it just works.
Everything above runs free in your browser. STUDIO puts the whole rack on your hard drive — no internet, no account, no chance it disappears. Plus 30 wavetables instead of 12, both patch packs, and a commercial licence for anything you make with it.