About
The modular synthesis lab and learning hub.
By IBPSynths · Last updated 2026-04-29
What this is
Synths.pw is a modular synthesis lab and learning hub on the open web. Three surfaces, one product.
Webrack is the lab: a real modular synth that runs in your browser. No install, no account required to play. It is the engine that powers everything else, and it stays free forever.
Academy is our free interactive courses. Every step is a custom hands-on experience: widgets, 3D scenes, ear-training games, and real synth audio you control.
Creator Hub is the upcoming home for community courses by artists, educators, and sound designers. Each step is a real Webrack patch the student twists alongside the lesson. Currently gated to creators while we polish the editor and ship the first course; some Creator Hub courses will be paid once the platform opens publicly.
How this started
Synths.pw began in 2021, during the COVID lockdowns, as an attempt to explain sound synthesis to one person. The conversation stalled almost immediately. The vocabulary was foreign, the diagrams in books were static, and the videos online either skipped the fundamentals or buried them under hours of preamble. The thing missing was a place where you could see and hear what each idea actually does as you read about it.
So we started building one. The first prototype was crude: a handful of oscillators, a filter, a sequencer, all in a browser tab. It made sound, but barely. Three full redesigns of the engine later — across roughly five years of work, from 2021 to today — it stopped being a prototype.
Today the engine drives a curated library of oscillators, filters, envelopes, sequencers, samplers, drum voices, and effects. It hosts native ports of legendary modules from the Mutable Instruments family. It tracks every Eurorack convention end-to-end, so the skills you build here transfer directly to a real hardware rig.
The lessons that started this whole thing are still the centre of gravity. The lab exists so the lessons can be hands-on; the Creator Hub exists so other educators can do the same.
Why this exists
Modular synthesis is one of the most rewarding ways to learn how sound actually works. The hardware is also expensive, intimidating, and gatekept. Open-source modular software exists, but it does not pair structured learning with a real working instrument in the same place.
Synths.pw fills that gap. The lab is a real instrument, not a toy. The lessons are interactive, not passive. The web makes it free.
Who is behind it
Synths.pw is built and maintained by IBPSynths (Itsy Bitsy Pixels Media Inc.), the broader umbrella for our work in synth design, audio software, and sound education.
Reach out: contact@synths.pw, @synthspw on X, Bluesky, the Discord, or the r/Webrack subreddit.
How to start
Open Webrack and patch a cable. Or take Eurorack 101 if you want a guided walk through the basics. Both are free, both run in your browser, both work on a phone.
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