Basil stereo delay completes Bastl’s PIZZA trio on VCV Rack — all for free

The freeware VCV Rack ports of Bastl’s delicious PIZZA family now include the original Pizza oscillator, Crust drum/percussive voice, and Basil stereo delay. Endless patching pleasures await with these (and don’t forget the free and open source KOMPAS “probability navigator,” too).

Airwindows VerbThic, VerbTiny let you go even more rabid for reverb, for free

Chris Johnson, aka Airwindows, continues to share his love for DSP with free tools, open source code, and elaborate discussions of the joy of crafting reverbs. So just in case you don’t feel blessed enough with free effects after SuperMassive’s new Sirius reverb/delay, here’s the tiny and the thick in all-new Airwindows editions. And they’ll even run in VCV Rack or on a Raspberry Pi.

Peter Kirn - December 3, 2025

SuperSonic: SuperCollider synth is fun, playful, colorful, free, in any Web page

It’s the full SuperCollider synth, without the installation. You can add it to any site (self-hosted). It performs seamlessly via WebAssembly. But most importantly, it’s fun, colorful, and comes with examples and an OSC API so it can interface with live coding tools like Tidal (or your favorite). And you can mess around with it right now, for free.

Peter Kirn - November 15, 2025